Question

How do you simplify -5(m + 9) + 3m + 6(3m – 15)

Answer 1

16m - 135

Explanation:

Distribute the -5 on -5(m+9) to make -5m-45

Do the same with 6(3m-15) to get 18m - 90

Then arrange the like terms together

-5m + 3m + 18m - 45 - 90

Add the ones with variables

-5m + 3m + 18m = 16m

Then the regular ones

(-45) + (-90) = -135

And finally,

16m -135

Answer 2

16m - 135

Explanation:

-5(m + 9) + 3m + 6(3m – 15)

Distribute

-5m + -5*9 +3m +6*3m -6*15

-5m -45 +3m +18m -90

Combine like terms

-5m +3m +18m -45-90

16m - 135