8x+15=3x-20

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Solution for 8x+15=3x-20 equation: 


Simplifying
8x + 15 = 3x + -20

Reorder the terms:
15 + 8x = 3x + -20

Reorder the terms:
15 + 8x = -20 + 3x

Solving
15 + 8x = -20 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
15 + 8x + -3x = -20 + 3x + -3x

Combine like terms: 8x + -3x = 5x
15 + 5x = -20 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + 5x = -20 + 0
15 + 5x = -20

Add '-15' to each side of the equation.
15 + -15 + 5x = -20 + -15

Combine like terms: 15 + -15 = 0
0 + 5x = -20 + -15
5x = -20 + -15

Combine like terms: -20 + -15 = -35
5x = -35

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

Simplifying
x = -7

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