y=4
y=2x-5
We’re finding what x is.
To solve this problem, we will use substitution. We are given that y=4, so we will substitute 4 in for y.
y=2x-5
Substitute:
4=2x-5
Add 5 to both sides:
9=2x
Divide both sides by 2:
x=4.5
That’s your answer! Hope this helped!