Question

-3(6r+9)+8(3r+8)

Answer 1

-18r - 27 + 24r + 64

Answer 2

first you would want to multiply/distribute each number outside the parentheses to the number inside, so like -3 with 6r, -3 with 9, 8 with 3r, and 8 with 8.

Answer 3

So when you do that, you should get:
-18r-27+24r+64

Answer 4

Then you'd put all the similar numbers together, r with r, numbers with numbers

Answer 5

so
-18r+24r-27+64
then simplify and you get:
6r+37 :)

Answer 6

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