3x-(-2-4x)x=5

Simple and best practice solution for 3x-(-2-4x)x=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 3x-(-2-4x)x=5 equation:


Simplifying
3x + -1(-2 + -4x) * x = 5

Reorder the terms for easier multiplication:
3x + -1x(-2 + -4x) = 5
3x + (-2 * -1x + -4x * -1x) = 5
3x + (2x + 4x2) = 5

Combine like terms: 3x + 2x = 5x
5x + 4x2 = 5

Solving
5x + 4x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + 5x + 4x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + 5x + 4x2 = 0

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

Divide each side by '4'.
-1.25 + 1.25x + x2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + 1.25x + 1.25 + x2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + 1.25x + x2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + 1.25x + x2 = 0 + 1.25
1.25x + x2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
1.25x + x2 = 1.25

The x term is 1.25x.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25x + 0.390625 + x2 = 1.25 + 0.390625

Reorder the terms:
0.390625 + 1.25x + x2 = 1.25 + 0.390625

Combine like terms: 1.25 + 0.390625 = 1.640625
0.390625 + 1.25x + x2 = 1.640625

Factor a perfect square on the left side:
(x + 0.625)(x + 0.625) = 1.640625

Calculate the square root of the right side: 1.280868846

Break this problem into two subproblems by setting 
(x + 0.625) equal to 1.280868846 and -1.280868846.

Subproblem 1

x + 0.625 = 1.280868846 Simplifying x + 0.625 = 1.280868846 Reorder the terms: 0.625 + x = 1.280868846 Solving 0.625 + x = 1.280868846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x = 1.280868846 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x = 1.280868846 + -0.625 x = 1.280868846 + -0.625 Combine like terms: 1.280868846 + -0.625 = 0.655868846 x = 0.655868846 Simplifying x = 0.655868846

Subproblem 2

x + 0.625 = -1.280868846 Simplifying x + 0.625 = -1.280868846 Reorder the terms: 0.625 + x = -1.280868846 Solving 0.625 + x = -1.280868846 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x = -1.280868846 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x = -1.280868846 + -0.625 x = -1.280868846 + -0.625 Combine like terms: -1.280868846 + -0.625 = -1.905868846 x = -1.905868846 Simplifying x = -1.905868846

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.655868846, -1.905868846}

See similar equations:

| 7(3x+2)=77 | | -2y(y+6)=y+3+2y | | -3.2+14z=15z | | 24=y/6 | | -3x+(2+4x)x=5 | | 8p-7=0 | | .4y-8=.4y+16 | | 8.1s-9=7.1s-9 | | 1-(-7)=-6 | | 3x+(2+4x)x=5 | | 12-4n=2 | | -3a+b=5ac | | 34-8=35-x | | 6w^2-5w-4=0 | | 3x+(5x+10)+3x+(5x+10)=165 | | 2x+4=-1x+7 | | y=112(x-7)+10 | | 0.02x=0.82 | | -3*5=-15 | | 9x-8=76-3x | | 3x^3-4x^2-5x=0 | | -5=-6+w | | 9x-3x=76-3x | | Z+23=41 | | 2=6-4n | | 3x-(5-4x)=7x+3 | | 6=6-4n | | 0.5x+x+8=23 | | 8/11*3/2-1/2 | | ((x+3)2)+6x=46 | | 10x+9y=5z-8wforx | | 8s-8=8s-13+5 |

Equations solver categories