7g+12=21+g

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Solution for 7g+12=21+g equation:


Simplifying
7g + 12 = 21 + g

Reorder the terms:
12 + 7g = 21 + g

Solving
12 + 7g = 21 + g

Solving for variable 'g'.

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

Add '-1g' to each side of the equation.
12 + 7g + -1g = 21 + g + -1g

Combine like terms: 7g + -1g = 6g
12 + 6g = 21 + g + -1g

Combine like terms: g + -1g = 0
12 + 6g = 21 + 0
12 + 6g = 21

Add '-12' to each side of the equation.
12 + -12 + 6g = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 6g = 21 + -12
6g = 21 + -12

Combine like terms: 21 + -12 = 9
6g = 9

Divide each side by '6'.
g = 1.5

Simplifying
g = 1.5

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