Question

Solve the following system using substitution.
-3x + y = -2
-x + y = 6

Answer 1

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Answer 2

You need to fix your first equation.

Answer 3

haha my bad.

Answer 4

Saraah, still having troubles?

Answer 5

yes.

Answer 6

-3x + y = -2
-x + y = 6

first, one of the equations needs to be solved for y. Look at the. Which equation is easiest to solve for y?

Answer 7

...

Answer 8

the first one

Answer 9

Well, it doesn't really matter which equation we solve for y, but we need to solve one. So lets solve the second since it's a bit easier.

-x + y = 6
y = 6 + x. There! Now we know why y equals. Now all we need to do is SUBSTITUTE it into the other equation.

-3x + y = -2 = -3x + 6 + x = -2

Now, all you have to do is solve the equation for x!

Answer 10

alright

Answer 11

Did you solve the equation?