-3(g-12)-30=21-2g

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Solution for -3(g-12)-30=21-2g equation:


Simplifying
-3(g + -12) + -30 = 21 + -2g

Reorder the terms:
-3(-12 + g) + -30 = 21 + -2g
(-12 * -3 + g * -3) + -30 = 21 + -2g
(36 + -3g) + -30 = 21 + -2g

Reorder the terms:
36 + -30 + -3g = 21 + -2g

Combine like terms: 36 + -30 = 6
6 + -3g = 21 + -2g

Solving
6 + -3g = 21 + -2g

Solving for variable 'g'.

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

Add '2g' to each side of the equation.
6 + -3g + 2g = 21 + -2g + 2g

Combine like terms: -3g + 2g = -1g
6 + -1g = 21 + -2g + 2g

Combine like terms: -2g + 2g = 0
6 + -1g = 21 + 0
6 + -1g = 21

Add '-6' to each side of the equation.
6 + -6 + -1g = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -1g = 21 + -6
-1g = 21 + -6

Combine like terms: 21 + -6 = 15
-1g = 15

Divide each side by '-1'.
g = -15

Simplifying
g = -15

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