13=-4x-9

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Solution for 13=-4x-9 equation:


Simplifying
13 = -4x + -9

Reorder the terms:
13 = -9 + -4x

Solving
13 = -9 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
13 + 4x = -9 + -4x + 4x

Combine like terms: -4x + 4x = 0
13 + 4x = -9 + 0
13 + 4x = -9

Add '-13' to each side of the equation.
13 + -13 + 4x = -9 + -13

Combine like terms: 13 + -13 = 0
0 + 4x = -9 + -13
4x = -9 + -13

Combine like terms: -9 + -13 = -22
4x = -22

Divide each side by '4'.
x = -5.5

Simplifying
x = -5.5

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