5g+12=2g+21

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Solution for 5g+12=2g+21 equation:


Simplifying
5g + 12 = 2g + 21

Reorder the terms:
12 + 5g = 2g + 21

Reorder the terms:
12 + 5g = 21 + 2g

Solving
12 + 5g = 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.
12 + 5g + -2g = 21 + 2g + -2g

Combine like terms: 5g + -2g = 3g
12 + 3g = 21 + 2g + -2g

Combine like terms: 2g + -2g = 0
12 + 3g = 21 + 0
12 + 3g = 21

Add '-12' to each side of the equation.
12 + -12 + 3g = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 3g = 21 + -12
3g = 21 + -12

Combine like terms: 21 + -12 = 9
3g = 9

Divide each side by '3'.
g = 3

Simplifying
g = 3

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