-7y--5y=20

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Solution for -7y--5y=20 equation:


-7y - -5y = 20

We simplify the equation to the form, which is simple to understand 
-7y+5y=20

We move all terms containing y to the left and all other terms to the right. 
-7y+5y=+20

We simplify left and right side of the equation. 
-2y=+20

We divide both sides of the equation by -2 to get y. 
y=-10

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