20=-5x-15

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Solution for 20=-5x-15 equation:


Simplifying
20 = -5x + -15

Reorder the terms:
20 = -15 + -5x

Solving
20 = -15 + -5x

Solving for variable 'x'.

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

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

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

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

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

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

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

Simplifying
x = -7

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