-4(1+4x)-5(1-5x)=x-8+7

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Solution for -4(1+4x)-5(1-5x)=x-8+7 equation:


Simplifying
-4(1 + 4x) + -5(1 + -5x) = x + -8 + 7
(1 * -4 + 4x * -4) + -5(1 + -5x) = x + -8 + 7
(-4 + -16x) + -5(1 + -5x) = x + -8 + 7
-4 + -16x + (1 * -5 + -5x * -5) = x + -8 + 7
-4 + -16x + (-5 + 25x) = x + -8 + 7

Reorder the terms:
-4 + -5 + -16x + 25x = x + -8 + 7

Combine like terms: -4 + -5 = -9
-9 + -16x + 25x = x + -8 + 7

Combine like terms: -16x + 25x = 9x
-9 + 9x = x + -8 + 7

Reorder the terms:
-9 + 9x = -8 + 7 + x

Combine like terms: -8 + 7 = -1
-9 + 9x = -1 + x

Solving
-9 + 9x = -1 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
-9 + 9x + -1x = -1 + x + -1x

Combine like terms: 9x + -1x = 8x
-9 + 8x = -1 + x + -1x

Combine like terms: x + -1x = 0
-9 + 8x = -1 + 0
-9 + 8x = -1

Add '9' to each side of the equation.
-9 + 9 + 8x = -1 + 9

Combine like terms: -9 + 9 = 0
0 + 8x = -1 + 9
8x = -1 + 9

Combine like terms: -1 + 9 = 8
8x = 8

Divide each side by '8'.
x = 1

Simplifying
x = 1

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