Question

3x-8y=5 find the value if y when x equals 15

Answer 1

To solve for this, we need to plug in 15 for x.

3x - 8y = 5
Plug in 15 for x.
3(15) -8y = 5
45 -8y = 5
Subtract 45 from both sides to solve for x.
45 - 45 = 0
5 -45 = -40
-8y = -40
Divide both sides by -8 to solve for y.
-8y / -8 = y
-40 / -8 = 5

Y = 5 is your answer.

I hope this helps!

Answer 2

plut in 15 for x
then solve for the value of y that makes the statement true

3(15)-8y=5
45-8y=5
minsus 45 both sides
-8y=-40
divide both sides by -8
y=5

the value of y is 5 when x=15