Solve for y 0.90y+0.25(70)=0.80(y+70)

Math
0.9y+0.25(70)=0.8(y+70)
Multiply 0.25 by 70.
0.9y+17.5=0.8(y+70)
Simplify 0.8(y+70).
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Apply the distributive property.
0.9y+17.5=0.8y+0.8⋅70
Multiply 0.8 by 70.
0.9y+17.5=0.8y+56
0.9y+17.5=0.8y+56
Move all terms containing y to the left side of the equation.
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Subtract 0.8y from both sides of the equation.
0.9y+17.5-0.8y=56
Subtract 0.8y from 0.9y.
0.1y+17.5=56
0.1y+17.5=56
Move all terms not containing y to the right side of the equation.
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Subtract 17.5 from both sides of the equation.
0.1y=56-17.5
Subtract 17.5 from 56.
0.1y=38.5
0.1y=38.5
Divide each term by 0.1 and simplify.
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Divide each term in 0.1y=38.5 by 0.1.
0.1y0.1=38.50.1
Cancel the common factor of 0.1.
y=38.50.1
Divide 38.5 by 0.1.
y=385
y=385
Solve for y 0.90y+0.25(70)=0.80(y+70)

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