2 years ago

–8x + 9y = –8 y = –8 substetution Need fast

1 answer:

5 0

If you substitute the -8 in for y you will get -72
You can then add the 72 to the other side and get -8x=64
Dividing by -8 to both sides to get x alone will give you x
X=-8

You might be interested in

This is the question (x^3)^4=x^?

MatroZZZ [7]

Answer:x^12

Step-by-step explanation:

7 0

3 years ago

Jane has to stickers /

dimulka [17.4K]

Answer:

Andy basically has two stickers

4 0

1 year ago

Joan puts $400 into a bank account. Each year the account earns 7% simple interest. How much interest will be earned in four yea

Sladkaya [172]

$60

400 ÷ 7 = 57. 1428571429

Since that's not an option we estimate it. The closest number is $60 so, there's your answer!

I hope this helps! sorry if it's wrong :(

~ Kana ^^

3 0

2 years ago

A factory produces 2354 hammers every hour. Which expression can be used to find how many hammers the factory produces in 3 hour

ki77a [65]

An expression might be: 2354h / 3hrs. You can make the real division sign if you're using paper. Hope this helped :)

8 0

3 years ago

Read 2 more answers

X is six more than four times the value of y.

Oksana_A [137]

Therefore
(4y+6) +y = 46

We can combine the like terms:
5y + 6 = 46

Subtract 6 on both sides:

5y+6-6=46-6

Therefore 5y =40

Divide by 5 on both sides

5y/5 = 40/5

Therefore

y= 8
We found y but to find the value x we use y.

X= 4y+6

Therefore
x= (4*8)+ 6

Therefore

x= 32 + 6

x= 38.

7 0

2 years ago

Read 2 more answers