Solve for y
y = \frac{242}{131} = 1\frac{111}{131} \approx 1.847328244
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45\times 3y-4y=242
Multiply both sides of the equation by 20, the least common multiple of 4,5.
135y-4y=242
Multiply 45 and 3 to get 135.
131y=242
Combine 135y and -4y to get 131y.
y=\frac{242}{131}
Divide both sides by 131.
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