Evaluate this expression (-7--9)*(8+2)
Before we get started, it is good to remember PEMDAS - the acronym that tells you the order to carry out equations. P = parentheses E = exponents M = multiplication D = division A = addition S = subtraction Knowing this, we should start by doing the equations within each parentheses. [latex](-7 - -9) *(8 + 2)[/latex] [latex](2) *(10)[/latex] So we did the addition and subtraction pieces within each group leaving us with the above equation. Now let's multiply: [latex](2)*(10) = 20[/latex] 20 is the answer.