x+15=6x-20

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Solution for x+15=6x-20 equation:


Simplifying
x + 15 = 6x + -20

Reorder the terms:
15 + x = 6x + -20

Reorder the terms:
15 + x = -20 + 6x

Solving
15 + x = -20 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
15 + x + -6x = -20 + 6x + -6x

Combine like terms: x + -6x = -5x
15 + -5x = -20 + 6x + -6x

Combine like terms: 6x + -6x = 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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