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2(-1)-2y=4
We simplify the equation to the form, which is simple to understand
2(-1)-2y=4
Reorder the terms in parentheses
+(-2)-2y=4
Remove unnecessary parentheses
-2-2y=+4
We move all terms containing y to the left and all other terms to the right.
-2y=+4+2
We simplify left and right side of the equation.
-2y=+6
We divide both sides of the equation by -2 to get y.
y=-3
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