Question

Y=2x +1 x=3. how do I find the Y in each equation

Answer 1

Since we already have X, I'm guessing all the question asks you to do is plug it in and solve it to get a Y= equation

If I'm right, then the process is

Y=2(3)+1 (putting 3 in place of x)

Y=6+1

Y=7

Which makes 7 your answer

Answer 2

Sub 3 for x
y=2(3)+1
y=6+1
y=7

y=7 when x=3