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2y-5y+7=13
We simplify the equation to the form, which is simple to understand
2y-5y+7=13
We move all terms containing y to the left and all other terms to the right.
+2y-5y=+13-7
We simplify left and right side of the equation.
-3y=+6
We divide both sides of the equation by -3 to get y.
y=-2
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