Question

2x - y = 1, if x = -1, then y = ?

thank you<3

Answer 1

So your question is
2x - y = 1, if x = -1, then y = ? correct?

Answer 2

so we need to solve for y. Since we are given x = -1 you plug it into the equation and solve for y

Answer 3

2x - (-1) = try this

Answer 4

so can you plug in x = -1
for this equation
2x - y = 1?

Answer 5

the answer is -3 haha. thanks!

Answer 6

I'll check just to be sure

2(-1)-y =1
-2-y=1
+2 +2
-y=3
y= -3 yes you are correct :)

Answer 7

so x = -1 , y = -3
2(-1)-(-3) =1
-2+3=1
1=1
yup checks out :) good job!