Asked by EmilyMay

I understand how to multiply a polynomial by a monomial for example

6pq(3p^2+4q)= 18p^3q+24pq^2

but i don't know how to do problems like this

5(2s-1)+3=3(3s+2)

HELP PLEASE!!
Answered by Ms. Sue
5(2s-1)+3=3(3s+2)

10s - 5 + 3 = 9s + 6

s = 6 + 5 - 3

s = 8

Answered by EmilyMay
how did you get the 's' by its self?
Answered by EmilyMay
Did you take 9 and subtract it by 10 to get 1s but you just dropped the 1 because a variable always has and invisible 1?
Answered by Ms. Sue
Yes. I subtracted 9s from both sides.
Answered by EmilyMay
Ohhh kayy thanks i didn't see at first... Thank You!!
Answered by Ms. Sue
You're welcome. :-)
Answered by EmilyMay
just to be sure did i do this right?

3(3u+2)+5=2(2u-2)
9u+6+5=4u-4
5u=-15
5/5=-15/5
u=-3
Answered by Ms. Sue
Right.
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