21-3g=4g

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Solution for 21-3g=4g equation:


Simplifying
21 + -3g = 4g

Solving
21 + -3g = 4g

Solving for variable 'g'.

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

Add '-4g' to each side of the equation.
21 + -3g + -4g = 4g + -4g

Combine like terms: -3g + -4g = -7g
21 + -7g = 4g + -4g

Combine like terms: 4g + -4g = 0
21 + -7g = 0

Add '-21' to each side of the equation.
21 + -21 + -7g = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7g = 0 + -21
-7g = 0 + -21

Combine like terms: 0 + -21 = -21
-7g = -21

Divide each side by '-7'.
g = 3

Simplifying
g = 3

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