9 was subtracted from a certain number and the result was divided by 4. If the final answer is 5, what was the original number?
1 answer:
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Cross multiply
2(11-x) = 1(3x+2)
Distribute
22-2x = 3x+2
Subtract 22 from both sides
-2x = 3x-20
Subtract 3x from both sides
-5x = -20
Divide both sides by -5
x=4