3 years ago

X= y-2 2x+3y=21 Solution_______

1 answer:

algol133 years ago

3 0

X= y-2

2x+3y=21
⇒ 2(y-2)+3y=21
⇒ 2y-4+3y= 21 (distributive property)
⇒ (2y+3y)-4= 21 (combine like terms)
⇒ 5y= 21+4
⇒ 5y= 25
⇒ y= 25/5
⇒ y= 5

The final answer is y=5~

You might be interested in

A pear weighs 6 ounces. Do 11 pears weigh more than 5 pounds? yes or no

yan [13]

One pear weighs 6 oz, you have 11 pears you multiply 11 by 6 getting 66 oz divided by 16 equals 4.25 lbs. Because there are 16 oz in 1 pound.

answer: No

5 0

3 years ago

What is the area of this triangle?

mafiozo [28]

Answer:

I believe the answer is 24

5 0

3 years ago

Read 2 more answers

The Earth has a mass of about 6 x 1024 kg. Neptune has a mass of 1 x 1026 kg.

Leno4ka [110]

Neptune is about four times wider than Earth.