Posted by jasmine20 on .
can someone correct this for me please.
Directions: Solve the system by substitution.
x + y = 12
y = 2x
this is what i did:
in the first equation i substituted y for what i have in the second equation so now it looks like this:
x +2x = 12
3x = 12
x = 4
now i substitute my x into the first equation to look like this:
4 + y = 12
y = 8
so the answer is for variable x its 4
for variable y is 8