Question

Solve for y: 3y - 7 = 17 a) y = 10 b) y = 24 c) y = 8 d) y = 5

Answer 1

The solution to this equation is y = 8.

We need to remember that we should isolate the variable in any equation.

In this case, this variable is y. So we'll try and figure out the value of y by isolating it step by step.

Our equation is:

⇒
`\sf{3y-7=17}`

Add 7 to both sides:

⇒
`\sf{3y=17+7}`

⇒
`\sf{3y=24}`

Y isn't on its own yet, we still need to divide both sides by 3 :

⇒
`\sf{y=8}`

Therefore, y = 8. Option c) is the right one.

Answer 2

3y - 7 = 17

3y = 24

y = 8

The correct answer is C.