Question

solve the equation 28=-4(n+15) n=???

Answer 1

\[\huge{28=-4(n+15)}\]
\[\huge{28=-4(n)-4(15)}\] Note : I applied The distributive property under addition
that states that :
\[\huge{a(b+c)=ab+ac}\]
\[\huge{28=-4n-50}\]
\[\huge{28+50=-4n}\]
\[\huge{78=-4n}\]

Answer 2

Can u solve further ?

Answer 3

divide both sides by -4

-7 = n + 15

i'll leave you to finish the question

Answer 4

u can also do like @campbell_st did

Answer 5

ok thanks working on it now

Answer 6

ok so I divided both side and I got 3.75 and 1.75 then what divide?

Answer 7

or is that not right?

Answer 8

-19.5? @mathslover

Answer 9

When you divide both sides by -4, you get -7 = n + 15

So now you need to solve -7 = n + 15

What do you get when you solve that last equation for n?

Answer 10

-22 ?

Answer 11

good

Answer 12

you got it

Answer 13

Yayyy ! Thanks

Answer 14

everybody

Answer 15

It looks like once you have something like -7 = n + 15, you can see/get the solution very easily

So I would practice with multiplying/dividing both sides like what is done above to sharpen your skills here.

Answer 16

Ie practice going from

28=-4(n+15)

to

-7 = n + 15

Answer 17

ok thanks for the advice! Im going to do another question here in a sec Id like if you could help

Answer 18

alright, go ahead and post it