3x-7x=15-75

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Solution for 3x-7x=15-75 equation: 


Simplifying
3x + -7x = 15 + -75

Combine like terms: 3x + -7x = -4x
-4x = 15 + -75

Combine like terms: 15 + -75 = -60
-4x = -60

Solving
-4x = -60

Solving for variable 'x'.

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

Divide each side by '-4'.
x = 15

Simplifying
x = 15

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