-18-9x+4x=42

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Solution for -18-9x+4x=42 equation: 


Simplifying
-18 + -9x + 4x = 42

Combine like terms: -9x + 4x = -5x
-18 + -5x = 42

Solving
-18 + -5x = 42

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + -5x = 42 + 18

Combine like terms: -18 + 18 = 0
0 + -5x = 42 + 18
-5x = 42 + 18

Combine like terms: 42 + 18 = 60
-5x = 60

Divide each side by '-5'.
x = -12

Simplifying
x = -12

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