(5x-1)-(2-8x)x=0.75

Simple and best practice solution for (5x-1)-(2-8x)x=0.75 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 (5x-1)-(2-8x)x=0.75 equation:


Simplifying
(5x + -1) + -1(2 + -8x) * x = 0.75

Reorder the terms:
(-1 + 5x) + -1(2 + -8x) * x = 0.75

Remove parenthesis around (-1 + 5x)
-1 + 5x + -1(2 + -8x) * x = 0.75

Reorder the terms for easier multiplication:
-1 + 5x + -1x(2 + -8x) = 0.75
-1 + 5x + (2 * -1x + -8x * -1x) = 0.75
-1 + 5x + (-2x + 8x2) = 0.75

Combine like terms: 5x + -2x = 3x
-1 + 3x + 8x2 = 0.75

Solving
-1 + 3x + 8x2 = 0.75

Solving for variable 'x'.

Reorder the terms:
-1 + -0.75 + 3x + 8x2 = 0.75 + -0.75

Combine like terms: -1 + -0.75 = -1.75
-1.75 + 3x + 8x2 = 0.75 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
-1.75 + 3x + 8x2 = 0.00

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

Divide each side by '8'.
-0.21875 + 0.375x + x2 = 0.00

Move the constant term to the right:

Add '0.21875' to each side of the equation.
-0.21875 + 0.375x + 0.21875 + x2 = 0.00 + 0.21875

Reorder the terms:
-0.21875 + 0.21875 + 0.375x + x2 = 0.00 + 0.21875

Combine like terms: -0.21875 + 0.21875 = 0.00000
0.00000 + 0.375x + x2 = 0.00 + 0.21875
0.375x + x2 = 0.00 + 0.21875

Combine like terms: 0.00 + 0.21875 = 0.21875
0.375x + x2 = 0.21875

The x term is 0.375x.  Take half its coefficient (0.1875).
Square it (0.03515625) and add it to both sides.

Add '0.03515625' to each side of the equation.
0.375x + 0.03515625 + x2 = 0.21875 + 0.03515625

Reorder the terms:
0.03515625 + 0.375x + x2 = 0.21875 + 0.03515625

Combine like terms: 0.21875 + 0.03515625 = 0.25390625
0.03515625 + 0.375x + x2 = 0.25390625

Factor a perfect square on the left side:
(x + 0.1875)(x + 0.1875) = 0.25390625

Calculate the square root of the right side: 0.503891109

Break this problem into two subproblems by setting 
(x + 0.1875) equal to 0.503891109 and -0.503891109.

Subproblem 1

x + 0.1875 = 0.503891109 Simplifying x + 0.1875 = 0.503891109 Reorder the terms: 0.1875 + x = 0.503891109 Solving 0.1875 + x = 0.503891109 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + x = 0.503891109 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + x = 0.503891109 + -0.1875 x = 0.503891109 + -0.1875 Combine like terms: 0.503891109 + -0.1875 = 0.316391109 x = 0.316391109 Simplifying x = 0.316391109

Subproblem 2

x + 0.1875 = -0.503891109 Simplifying x + 0.1875 = -0.503891109 Reorder the terms: 0.1875 + x = -0.503891109 Solving 0.1875 + x = -0.503891109 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + x = -0.503891109 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + x = -0.503891109 + -0.1875 x = -0.503891109 + -0.1875 Combine like terms: -0.503891109 + -0.1875 = -0.691391109 x = -0.691391109 Simplifying x = -0.691391109

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.316391109, -0.691391109}

See similar equations:

| W=2ZX+2ZY+2XY | | 18x^2-79x+56=0 | | 28x^2-71x+45=0 | | (5x-1)-(2-8x)ifx=0.75 | | x+1/2x=10 | | (24/60)=(6/t) | | 2(x+3)=24x-6 | | 5.6x-1.7-4.9x=-0.3x-3.8 | | 70/a+84/2=1274 | | 55t-5t^2+13=0 | | -2y=3-2x | | 5/n=30/9 | | y=123+-0.90x | | s-2=3(2-(-1)) | | x/3+2x=1/5 | | 12+x=24x | | X-54x=5x-6 | | 3(3-x)=-3 | | (1.006-3.425/1.006+3.425)*2=r | | x=50+-0.90x | | x=40+-0.90x | | 6((7-x)+x)= | | x=30+-0.90x | | 2x-1/6 | | x=20+-0.90x | | y=20+-0.90x | | 8x+18=99 | | -1/4x^2+5x-7=0 | | y=-0.90x+20 | | X-54=6-5x | | 2.5=1.5n+8 | | 2x-1/6+x+3/3 |

Equations solver categories