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(4/5)y-4=(-9/10)y+1
We simplify the equation to the form, which is simple to understand
(4/5)y-4=(-9/10)y+1
Reorder the terms in parentheses
( + 0.8y)-4=(-0.9)*y+1
Remove unnecessary parentheses
+ 0.8y-4=(-0.9)*y+1
Reorder the terms in parentheses
+ 0.8y-4=(-0.9y)+1
Remove unnecessary parentheses
+ 0.8y-4=-0.9y+1
We move all terms containing y to the left and all other terms to the right.
+ 0.8y + 0.9y=+1+4
We simplify left and right side of the equation.
+1.7y=+5
We divide both sides of the equation by 1.7 to get y.
y=2.9411764705882
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