4x+30=12-42

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Solution for 4x+30=12-42 equation: 


Simplifying
4x + 30 = 12 + -42

Reorder the terms:
30 + 4x = 12 + -42

Combine like terms: 12 + -42 = -30
30 + 4x = -30

Solving
30 + 4x = -30

Solving for variable 'x'.

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

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

Combine like terms: 30 + -30 = 0
0 + 4x = -30 + -30
4x = -30 + -30

Combine like terms: -30 + -30 = -60
4x = -60

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

Simplifying
x = -15

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