84=-9x-4x

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Solution for 84=-9x-4x equation:


Simplifying
84 = -9x + -4x

Combine like terms: -9x + -4x = -13x
84 = -13x

Solving
84 = -13x

Solving for variable 'x'.

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

Add '13x' to each side of the equation.
84 + 13x = -13x + 13x

Combine like terms: -13x + 13x = 0
84 + 13x = 0

Add '-84' to each side of the equation.
84 + -84 + 13x = 0 + -84

Combine like terms: 84 + -84 = 0
0 + 13x = 0 + -84
13x = 0 + -84

Combine like terms: 0 + -84 = -84
13x = -84

Divide each side by '13'.
x = -6.461538462

Simplifying
x = -6.461538462

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