7y-15=-78

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Solution for 7y-15=-78 equation:


7y-15=-78

We simplify the equation to the form, which is simple to understand 
7y-15=-78

We move all terms containing y to the left and all other terms to the right. 
+7y=-78+15

We simplify left and right side of the equation. 
+7y=-63

We divide both sides of the equation by 7 to get y. 
y=-9

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