Solve for y
y=3.5
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2y+3=20\times 0.5
Multiply both sides by 0.5.
2y+3=10
Multiply 20 and 0.5 to get 10.
2y=10-3
Subtract 3 from both sides.
2y=7
Subtract 3 from 10 to get 7.
y=\frac{7}{2}
Divide both sides by 2.
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