Question

Solve for x: 2x + 5 = 15 a) x = 10 b) x = 5 c) x = 7.5 d) x = 20

Answer 1

The solution is x = 5.

Let's begin. We're given the equation 2x + 5 = 15.

To isolate x, we need to subtract 5 from both sides of the equation.

⇒
`\sf{2x=15-5}\\\sf{2x=10}`

Divide both sides of the equation by 2 :

⇒
`\sf{x=5}`

Therefore, x = 5

Answer 2

2x + 5 = 15

2x = 10

x = 5

The correct answer is B.