Combine like terms. what is a simpler form of the expression -3(-4y + 3) + 7y show your work

First, distrbute -3 to both -4y and 3

-3(-4y) = 12y  -> note that two negatives multiplied = one positive answer

-3(3) = -9      -> note that one negative and one positive = one negative answer

12y - 9 + 7y  -> combine like terms

12y + 7y - 9

19y - 9 -> answer

Your answer is 19y - 9

hope this helps

~Crystal

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: