Question

Solve the following system of equations using SUBSTITUTION.

y = 3x
3x + 2y = 12
PLEASE EXPLAIN!! :)

Answer 1

Explanation:

y = 3x_______equation1

3x + 2y = 12_____equation2

sub y into equation 2

3x+2(3x)=12

3x+6x=12

9x=12

x=3/4

sub X into equation 1

y=3x

y=3(3/4)

y=9/4

y=9/4 x=3/4

I hope this helps