Solve the following formula for the indicated variable y.

Question

Solve the following formula for the indicated variable y.

3x + y = 8

Select one:

a.

y = -3x + 8

b.

y = 3x - 8

c.

y = 3x + 8

d.

y = -3x - 8

Answer 1

So we start with y=3x+8 and then you subtract 8 on both sides. This gives you:

y=8-3x

In y=mx+b form, this would then be:

y=-3x+8

Answer 2

Subtract 3x

answer A