1g-(-21)=20

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Solution for 1g-(-21)=20 equation: 


Simplifying
1g + -1(-21) = 20

Multiply -1 * -21
1g + 21 = 20

Reorder the terms:
21 + 1g = 20

Solving
21 + 1g = 20

Solving for variable 'g'.

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

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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