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7 is subtracted from a number y. Then the result is multiplied by 3. The final answer is equal to 12.

Alyssa and Sofia are working together on this question, but both ended up with different answers. Find out who is correct. Explain your reasoning with mathematical evidence.

Sagot :

Step-by-step explanation:

[tex] \bull \: \bf \: the \: equation \: is \\ \sf \hookrightarrow \: 3(y - 4) = 12 \\ \sf \hookrightarrow \: 3y - 12 = 12 \\ \sf \hookrightarrow \: 3y = 12 + 12 \\ \sf \hookrightarrow \: 3y = 24 \\ \sf \hookrightarrow \: y = \frac{24}{3} \\ \sf \hookrightarrow \: y = 8[/tex]

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