SAT Mathematics Practice Test 5

To solve the equation $2\left(\mathit{p}+1\right)+8\left(\mathit{p}-1\right)=5\mathit{p},$ first distribute the terms outside the parentheses to the terms inside the parentheses: $2\mathit{p}+2+8\mathit{p}-8=5\mathit{p}.$ Next, combine like terms on the left side of the equal sign: $10\mathit{p}-6=5\mathit{p}.$ Subtracting $10\mathit{p}$ from both sides yields $-6=-5\mathit{p}.$ Finally, dividing both sides by $-5$ gives $\mathit{p}=65=1.2.$ Either $\frac{6}{5}\mathit{o}\mathit{r}1.2$ can be gridded as the correct answer.