4x+12=-30-3x

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Solution for 4x+12=-30-3x equation:


Simplifying
4x + 12 = -30 + -3x

Reorder the terms:
12 + 4x = -30 + -3x

Solving
12 + 4x = -30 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
12 + 4x + 3x = -30 + -3x + 3x

Combine like terms: 4x + 3x = 7x
12 + 7x = -30 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 + 7x = -30 + 0
12 + 7x = -30

Add '-12' to each side of the equation.
12 + -12 + 7x = -30 + -12

Combine like terms: 12 + -12 = 0
0 + 7x = -30 + -12
7x = -30 + -12

Combine like terms: -30 + -12 = -42
7x = -42

Divide each side by '7'.
x = -6

Simplifying
x = -6

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