G(-1)=2x-9

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Solution for G(-1)=2x-9 equation: 



(-1)=2G-9

We move all terms to the left:

(-1)-(2G-9)=0

We add all the numbers together, and all the variables

-(2G-9)-1=0

We get rid of parentheses

-2G+9-1=0

We add all the numbers together, and all the variables

-2G+8=0

We move all terms containing G to the left, all other terms to the right

-2G=-8

G=-8/-2

G=+4

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