3 years ago

Solve the system of equations by first multiplying.

1 answer:

skad [1K]3 years ago

5 0

3x+y=-5

12x+5y=27

Let y =-5-3x

Insert y into equ.2

12x+5(-5-3x)=27

12x-25-15x=27 den rearrange

-3x=2 den x =-2/3

Den put xinto equ 1

3(-2/3)+y=5

-2+y=5(collect like terms)

Y =7

You might be interested in

beks73 [17]

4/3! : ) or 1 1/3. I hope this helps

8 0

4 years ago

kifflom [539]

if you simplify it you would have to find factors of 45 that are perfect squares, for example, the square root of 9 times the square root of 5 is the square root of 45 so if you want to simplify it you would need to take the square root of 9 which is 3

so if you put in simplest form you would get 3 root 5

$3\sqrt{5}$