12=7x+5-8x

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


Simplifying
12 = 7x + 5 + -8x

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

Combine like terms: 7x + -8x = -1x
12 = 5 + -1x

Solving
12 = 5 + -1x

Solving for variable 'x'.

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

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

Combine like terms: -1x + x = 0
12 + x = 5 + 0
12 + x = 5

Add '-12' to each side of the equation.
12 + -12 + x = 5 + -12

Combine like terms: 12 + -12 = 0
0 + x = 5 + -12
x = 5 + -12

Combine like terms: 5 + -12 = -7
x = -7

Simplifying
x = -7

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