Question

1. 15y - 7y + 7 + 5 =

Explanation:

Step1: Combine like terms for y

We have \(15y - 7y\). Subtracting the coefficients, \(15 - 7 = 8\), so \(15y - 7y = 8y\).

Step2: Combine constant terms

We have \(7 + 5\). Adding these together, \(7 + 5 = 12\).

Step3: Combine the results

Now we combine the result from the y - terms and the constant terms. So we get \(8y + 12\).

Answer:

\(8y + 12\)