7(-x-1)+8=5(7-x)+12

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Solution for 7(-x-1)+8=5(7-x)+12 equation:


Simplifying
7(-1x + -1) + 8 = 5(7 + -1x) + 12

Reorder the terms:
7(-1 + -1x) + 8 = 5(7 + -1x) + 12
(-1 * 7 + -1x * 7) + 8 = 5(7 + -1x) + 12
(-7 + -7x) + 8 = 5(7 + -1x) + 12

Reorder the terms:
-7 + 8 + -7x = 5(7 + -1x) + 12

Combine like terms: -7 + 8 = 1
1 + -7x = 5(7 + -1x) + 12
1 + -7x = (7 * 5 + -1x * 5) + 12
1 + -7x = (35 + -5x) + 12

Reorder the terms:
1 + -7x = 35 + 12 + -5x

Combine like terms: 35 + 12 = 47
1 + -7x = 47 + -5x

Solving
1 + -7x = 47 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
1 + -7x + 5x = 47 + -5x + 5x

Combine like terms: -7x + 5x = -2x
1 + -2x = 47 + -5x + 5x

Combine like terms: -5x + 5x = 0
1 + -2x = 47 + 0
1 + -2x = 47

Add '-1' to each side of the equation.
1 + -1 + -2x = 47 + -1

Combine like terms: 1 + -1 = 0
0 + -2x = 47 + -1
-2x = 47 + -1

Combine like terms: 47 + -1 = 46
-2x = 46

Divide each side by '-2'.
x = -23

Simplifying
x = -23

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