5(a - 2b)
First, make sure to substitute the numbers in for a and b. / Your problem should look like: 5 × (-3 - 2 × 5)
Second, simplify 2 × 5 to 10. / Your problem should look like: 5 × (-3 - 10)
Third, simplify -3 - 10 to -13. / Your problem should look like: 5 × -13
Fourth, simplify. / Your problem should look like: -65
Answer: -65 (C)
