Question

Solve the system by substitution.

-4.5x-2y=-12.5
3.25x-y=-0.75

Answer 1

well where are you having problem?

Answer 2

i can graph the equation but im not sure what they mean but solve with substitution

Answer 3

okay let's take first equation can you solve it for x?

Answer 4

do you combine like terms?

Answer 5

-4.5x - 2y = -4.5x - 2(3.25x-.75) = 12.15 this is what i have so far

Answer 6

yes you are right..
now as you have equation in terms of x

you can solve it

-4.5x-2(3.25x-.75=12.15
further simplifying

-4.5x-6.5x-1.5=12.15

-11x=12.15+1.5

can you solve this now?

Answer 7

x=-1.24