7x-12x-5=(-45)+15

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Solution for 7x-12x-5=(-45)+15 equation: 


Simplifying
7x + -12x + -5 = (-45) + 15

Reorder the terms:
-5 + 7x + -12x = (-45) + 15

Combine like terms: 7x + -12x = -5x
-5 + -5x = (-45) + 15
-5 + -5x = -45 + 15

Combine like terms: -45 + 15 = -30
-5 + -5x = -30

Solving
-5 + -5x = -30

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + -5x = -30 + 5

Combine like terms: -5 + 5 = 0
0 + -5x = -30 + 5
-5x = -30 + 5

Combine like terms: -30 + 5 = -25
-5x = -25

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

Simplifying
x = 5

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