Question

Solving Systems by Substitution
y=2x
y=-6x+4

Answer 1

-6x?

Answer 2

2x=-6+4
2x=-2
x=-2/2
x=-1

Answer 3

yes

Answer 4

In that case you can just do:

\[2x = -6+4\] and solve away!

Answer 5

Another way to write the system is:
2x = y = -6x + 4
or 2x = -6x + 4.
Solve for x, then plug that value into either equation to get y.