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A=6x-4-2x+8
To find the opposite of 2x-8, find the opposite of each term.
A=4x-4+8
Combine 6x and -2x to get 4x.
A=4x+4
Add -4 and 8 to get 4.
A=6x-4-2x+8
To find the opposite of 2x-8, find the opposite of each term.
A=4x-4+8
Combine 6x and -2x to get 4x.
A=4x+4
Add -4 and 8 to get 4.
4x+4=A
Swap sides so that all variable terms are on the left hand side.
4x=A-4
Subtract 4 from both sides.
\frac{4x}{4}=\frac{A-4}{4}
Divide both sides by 4.
x=\frac{A-4}{4}
Dividing by 4 undoes the multiplication by 4.
x=\frac{A}{4}-1
Divide A-4 by 4.