-3x-4=-7-12

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Solution for -3x-4=-7-12 equation: 


Simplifying
-3x + -4 = -7 + -12

Reorder the terms:
-4 + -3x = -7 + -12

Combine like terms: -7 + -12 = -19
-4 + -3x = -19

Solving
-4 + -3x = -19

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + -3x = -19 + 4

Combine like terms: -4 + 4 = 0
0 + -3x = -19 + 4
-3x = -19 + 4

Combine like terms: -19 + 4 = -15
-3x = -15

Divide each side by '-3'.
x = 5

Simplifying
x = 5

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