x+2+21=8x+-12

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Solution for x+2+21=8x+-12 equation:


Simplifying
x + 2 + 21 = 8x + -12

Reorder the terms:
2 + 21 + x = 8x + -12

Combine like terms: 2 + 21 = 23
23 + x = 8x + -12

Reorder the terms:
23 + x = -12 + 8x

Solving
23 + x = -12 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
23 + x + -8x = -12 + 8x + -8x

Combine like terms: x + -8x = -7x
23 + -7x = -12 + 8x + -8x

Combine like terms: 8x + -8x = 0
23 + -7x = -12 + 0
23 + -7x = -12

Add '-23' to each side of the equation.
23 + -23 + -7x = -12 + -23

Combine like terms: 23 + -23 = 0
0 + -7x = -12 + -23
-7x = -12 + -23

Combine like terms: -12 + -23 = -35
-7x = -35

Divide each side by '-7'.
x = 5

Simplifying
x = 5

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