Question

How do you simplify this?

-3 (-4y + 3) + 7y

Answer 1

@Hero @zepdrix @dan815 help please?

Answer 2

I knew hw to do this last year, but I need a refresher :/

Answer 3

@mathmale @timo86m @johnweldon1993 @Ashleyisakitty

Answer 4

Oh this is just distributing and simplifying

\[\large -3(-4y + 3) + 7y\]

Distribute the -3 into the parenthesis first

Answer 5

Ohhh okay...\[(-4y + -6) + 7y\] So would that be right?

Answer 6

Not quite...Distribute means to multiply it into each term in the parenthesis

So distributing that -3 into those parenthesis will mean

\[\large -3 \times -4y\]
\[\large -3 \times 3\]

Answer 7

Leaving us with

\[\large 12y - 9 + 7y\]

Now what else can be simplified?

Answer 8

I feel dumb now. I know I knew this before. Now we combine the 12y and 7y... So we end up with 19y - 9?

Answer 9

Perfect! :)

Answer 10

Thank you :)

Answer 11

Anytime hun :)