7x-3=2(x+1)5x-5

Simple and best practice solution for 7x-3=2(x+1)5x-5 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 7x-3=2(x+1)5x-5 equation:


Simplifying
7x + -3 = 2(x + 1) * 5x + -5

Reorder the terms:
-3 + 7x = 2(x + 1) * 5x + -5

Reorder the terms:
-3 + 7x = 2(1 + x) * 5x + -5

Reorder the terms for easier multiplication:
-3 + 7x = 2 * 5x(1 + x) + -5

Multiply 2 * 5
-3 + 7x = 10x(1 + x) + -5
-3 + 7x = (1 * 10x + x * 10x) + -5
-3 + 7x = (10x + 10x2) + -5

Reorder the terms:
-3 + 7x = -5 + 10x + 10x2

Solving
-3 + 7x = -5 + 10x + 10x2

Solving for variable 'x'.

Reorder the terms:
-3 + 5 + 7x + -10x + -10x2 = -5 + 10x + 10x2 + 5 + -10x + -10x2

Combine like terms: -3 + 5 = 2
2 + 7x + -10x + -10x2 = -5 + 10x + 10x2 + 5 + -10x + -10x2

Combine like terms: 7x + -10x = -3x
2 + -3x + -10x2 = -5 + 10x + 10x2 + 5 + -10x + -10x2

Reorder the terms:
2 + -3x + -10x2 = -5 + 5 + 10x + -10x + 10x2 + -10x2

Combine like terms: -5 + 5 = 0
2 + -3x + -10x2 = 0 + 10x + -10x + 10x2 + -10x2
2 + -3x + -10x2 = 10x + -10x + 10x2 + -10x2

Combine like terms: 10x + -10x = 0
2 + -3x + -10x2 = 0 + 10x2 + -10x2
2 + -3x + -10x2 = 10x2 + -10x2

Combine like terms: 10x2 + -10x2 = 0
2 + -3x + -10x2 = 0

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
-0.2 + 0.3x + x2 = 0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + 0.3x + 0.2 + x2 = 0 + 0.2

Reorder the terms:
-0.2 + 0.2 + 0.3x + x2 = 0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + 0.3x + x2 = 0 + 0.2
0.3x + x2 = 0 + 0.2

Combine like terms: 0 + 0.2 = 0.2
0.3x + x2 = 0.2

The x term is 0.3x.  Take half its coefficient (0.15).
Square it (0.0225) and add it to both sides.

Add '0.0225' to each side of the equation.
0.3x + 0.0225 + x2 = 0.2 + 0.0225

Reorder the terms:
0.0225 + 0.3x + x2 = 0.2 + 0.0225

Combine like terms: 0.2 + 0.0225 = 0.2225
0.0225 + 0.3x + x2 = 0.2225

Factor a perfect square on the left side:
(x + 0.15)(x + 0.15) = 0.2225

Calculate the square root of the right side: 0.471699057

Break this problem into two subproblems by setting 
(x + 0.15) equal to 0.471699057 and -0.471699057.

Subproblem 1

x + 0.15 = 0.471699057 Simplifying x + 0.15 = 0.471699057 Reorder the terms: 0.15 + x = 0.471699057 Solving 0.15 + x = 0.471699057 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.15' to each side of the equation. 0.15 + -0.15 + x = 0.471699057 + -0.15 Combine like terms: 0.15 + -0.15 = 0.00 0.00 + x = 0.471699057 + -0.15 x = 0.471699057 + -0.15 Combine like terms: 0.471699057 + -0.15 = 0.321699057 x = 0.321699057 Simplifying x = 0.321699057

Subproblem 2

x + 0.15 = -0.471699057 Simplifying x + 0.15 = -0.471699057 Reorder the terms: 0.15 + x = -0.471699057 Solving 0.15 + x = -0.471699057 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.15' to each side of the equation. 0.15 + -0.15 + x = -0.471699057 + -0.15 Combine like terms: 0.15 + -0.15 = 0.00 0.00 + x = -0.471699057 + -0.15 x = -0.471699057 + -0.15 Combine like terms: -0.471699057 + -0.15 = -0.621699057 x = -0.621699057 Simplifying x = -0.621699057

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.321699057, -0.621699057}

See similar equations:

| 2x+1-2x=8 | | 2(5p+1)-3= | | 3(10-6x)=x-8x | | 3x+17y=7 | | y^3+2y^2-29y-30=0 | | -2(t-4)+6t=9t-2 | | Y=4X+16 | | 3x+13+9x-8=41 | | -2(t-2)+6t=7t-3 | | 5(6x+1)+8=30x+13 | | 12p=s | | 3/4-5=20 | | 9=a/b | | -6(4x-2y+4)= | | 1/10x=1/5 | | u=v+8 | | 4y+12=92 | | 3x+70=5x-10 | | -8y+4=-9y+8 | | c/3-11=2 | | 6x+(1+2x)=9 | | 3(x+2)/5=4x-1 | | 2/3n+12=28 | | -1/9-4-9 | | u=v+b | | 3/8x=3/5 | | 8(7y+4)-3(3y+10)= | | 4m+5=25 | | 1/5x=1/10 | | 0.40x+0.25(60)=0.20(71) | | b-8=a | | 2(3f+3)+4(9f+2)= |

Equations solver categories