3x+12=2(x-30)+4

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Solution for 3x+12=2(x-30)+4 equation:


Simplifying
3x + 12 = 2(x + -30) + 4

Reorder the terms:
12 + 3x = 2(x + -30) + 4

Reorder the terms:
12 + 3x = 2(-30 + x) + 4
12 + 3x = (-30 * 2 + x * 2) + 4
12 + 3x = (-60 + 2x) + 4

Reorder the terms:
12 + 3x = -60 + 4 + 2x

Combine like terms: -60 + 4 = -56
12 + 3x = -56 + 2x

Solving
12 + 3x = -56 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
12 + 3x + -2x = -56 + 2x + -2x

Combine like terms: 3x + -2x = 1x
12 + 1x = -56 + 2x + -2x

Combine like terms: 2x + -2x = 0
12 + 1x = -56 + 0
12 + 1x = -56

Add '-12' to each side of the equation.
12 + -12 + 1x = -56 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = -56 + -12
1x = -56 + -12

Combine like terms: -56 + -12 = -68
1x = -68

Divide each side by '1'.
x = -68

Simplifying
x = -68

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