8x+4-18x-12-x+2=15x+21

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Solution for 8x+4-18x-12-x+2=15x+21 equation:


Simplifying
8x + 4 + -18x + -12 + -1x + 2 = 15x + 21

Reorder the terms:
4 + -12 + 2 + 8x + -18x + -1x = 15x + 21

Combine like terms: 4 + -12 = -8
-8 + 2 + 8x + -18x + -1x = 15x + 21

Combine like terms: -8 + 2 = -6
-6 + 8x + -18x + -1x = 15x + 21

Combine like terms: 8x + -18x = -10x
-6 + -10x + -1x = 15x + 21

Combine like terms: -10x + -1x = -11x
-6 + -11x = 15x + 21

Reorder the terms:
-6 + -11x = 21 + 15x

Solving
-6 + -11x = 21 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-6 + -11x + -15x = 21 + 15x + -15x

Combine like terms: -11x + -15x = -26x
-6 + -26x = 21 + 15x + -15x

Combine like terms: 15x + -15x = 0
-6 + -26x = 21 + 0
-6 + -26x = 21

Add '6' to each side of the equation.
-6 + 6 + -26x = 21 + 6

Combine like terms: -6 + 6 = 0
0 + -26x = 21 + 6
-26x = 21 + 6

Combine like terms: 21 + 6 = 27
-26x = 27

Divide each side by '-26'.
x = -1.038461538

Simplifying
x = -1.038461538

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