4x-5x=12-15

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Solution for 4x-5x=12-15 equation: 


Simplifying
4x + -5x = 12 + -15

Combine like terms: 4x + -5x = -1x
-1x = 12 + -15

Combine like terms: 12 + -15 = -3
-1x = -3

Solving
-1x = -3

Solving for variable 'x'.

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

Divide each side by '-1'.
x = 3

Simplifying
x = 3

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