-3x+20=3x-15-7

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Solution for -3x+20=3x-15-7 equation:


Simplifying
-3x + 20 = 3x + -15 + -7

Reorder the terms:
20 + -3x = 3x + -15 + -7

Reorder the terms:
20 + -3x = -15 + -7 + 3x

Combine like terms: -15 + -7 = -22
20 + -3x = -22 + 3x

Solving
20 + -3x = -22 + 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.
20 + -3x + -3x = -22 + 3x + -3x

Combine like terms: -3x + -3x = -6x
20 + -6x = -22 + 3x + -3x

Combine like terms: 3x + -3x = 0
20 + -6x = -22 + 0
20 + -6x = -22

Add '-20' to each side of the equation.
20 + -20 + -6x = -22 + -20

Combine like terms: 20 + -20 = 0
0 + -6x = -22 + -20
-6x = -22 + -20

Combine like terms: -22 + -20 = -42
-6x = -42

Divide each side by '-6'.
x = 7

Simplifying
x = 7

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