13=-3x-20

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Solution for 13=-3x-20 equation:


Simplifying
13 = -3x + -20

Reorder the terms:
13 = -20 + -3x

Solving
13 = -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.
13 + 3x = -20 + -3x + 3x

Combine like terms: -3x + 3x = 0
13 + 3x = -20 + 0
13 + 3x = -20

Add '-13' to each side of the equation.
13 + -13 + 3x = -20 + -13

Combine like terms: 13 + -13 = 0
0 + 3x = -20 + -13
3x = -20 + -13

Combine like terms: -20 + -13 = -33
3x = -33

Divide each side by '3'.
x = -11

Simplifying
x = -11

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