27-21=20+2g

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Solution for 27-21=20+2g equation:


Simplifying
27 + -21 = 20 + 2g

Combine like terms: 27 + -21 = 6
6 = 20 + 2g

Solving
6 = 20 + 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 + -2g = 20 + 2g + -2g

Combine like terms: 2g + -2g = 0
6 + -2g = 20 + 0
6 + -2g = 20

Add '-6' to each side of the equation.
6 + -6 + -2g = 20 + -6

Combine like terms: 6 + -6 = 0
0 + -2g = 20 + -6
-2g = 20 + -6

Combine like terms: 20 + -6 = 14
-2g = 14

Divide each side by '-2'.
g = -7

Simplifying
g = -7

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