7=-(g-20)

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Solution for 7=-(g-20) equation:


Simplifying
7 = -1(g + -20)

Reorder the terms:
7 = -1(-20 + g)
7 = (-20 * -1 + g * -1)
7 = (20 + -1g)

Solving
7 = 20 + -1g

Solving for variable 'g'.

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

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

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

Add '-7' to each side of the equation.
7 + -7 + g = 20 + -7

Combine like terms: 7 + -7 = 0
0 + g = 20 + -7
g = 20 + -7

Combine like terms: 20 + -7 = 13
g = 13

Simplifying
g = 13

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