-5+3g-7g=-21

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Solution for -5+3g-7g=-21 equation: 


Simplifying
-5 + 3g + -7g = -21

Combine like terms: 3g + -7g = -4g
-5 + -4g = -21

Solving
-5 + -4g = -21

Solving for variable 'g'.

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

Add '5' to each side of the equation.
-5 + 5 + -4g = -21 + 5

Combine like terms: -5 + 5 = 0
0 + -4g = -21 + 5
-4g = -21 + 5

Combine like terms: -21 + 5 = -16
-4g = -16

Divide each side by '-4'.
g = 4

Simplifying
g = 4

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