3g-(4g-5)=21

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Solution for 3g-(4g-5)=21 equation:


Simplifying
3g + -1(4g + -5) = 21

Reorder the terms:
3g + -1(-5 + 4g) = 21
3g + (-5 * -1 + 4g * -1) = 21
3g + (5 + -4g) = 21

Reorder the terms:
5 + 3g + -4g = 21

Combine like terms: 3g + -4g = -1g
5 + -1g = 21

Solving
5 + -1g = 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 + -1g = 21 + -5

Combine like terms: 5 + -5 = 0
0 + -1g = 21 + -5
-1g = 21 + -5

Combine like terms: 21 + -5 = 16
-1g = 16

Divide each side by '-1'.
g = -16

Simplifying
g = -16

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