Question

solve using substitution.

2x=y+9
5y=10x-45

Answer 1

what is y from first equation?

Answer 2

im not sure what youre asking.

Answer 3

-2x+9

Answer 4

yes

Answer 5

so what should the equation look like to solve x

Answer 6

just put it instead y in second equation

Answer 7

so 5(-2x+9)=10x-45

Answer 8

@MclainJa and @jygebs y=2x-9 from first equation

Answer 9

so 5(2x-9)=10x-45 just like what u did

Answer 10

okayy

Answer 11

can u solve it for x

Answer 12

-90?

Answer 13

it has infinite answers because after multiplication u have -45=-45

Answer 14

it means 2 equations are same

Answer 15

okayy.thank you!

Answer 16

yw