21+3g=20+2g

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Solution for 21+3g=20+2g equation:


Simplifying
21 + 3g = 20 + 2g

Solving
21 + 3g = 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.
21 + 3g + -2g = 20 + 2g + -2g

Combine like terms: 3g + -2g = 1g
21 + 1g = 20 + 2g + -2g

Combine like terms: 2g + -2g = 0
21 + 1g = 20 + 0
21 + 1g = 20

Add '-21' to each side of the equation.
21 + -21 + 1g = 20 + -21

Combine like terms: 21 + -21 = 0
0 + 1g = 20 + -21
1g = 20 + -21

Combine like terms: 20 + -21 = -1
1g = -1

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

Simplifying
g = -1

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