3x-4x=42+4-9

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Solution for 3x-4x=42+4-9 equation: 


Simplifying
3x + -4x = 42 + 4 + -9

Combine like terms: 3x + -4x = -1x
-1x = 42 + 4 + -9

Combine like terms: 42 + 4 = 46
-1x = 46 + -9

Combine like terms: 46 + -9 = 37
-1x = 37

Solving
-1x = 37

Solving for variable 'x'.

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

Divide each side by '-1'.
x = -37

Simplifying
x = -37

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