Question

If x +5 = 2b, find 2x + 10 in terms of b.

Answer 1

2x + 10 = 4b

Explanation:

Given

x + 5 = 2b ( multiply through by 2 )

2x + 10 = 4b

Answer 2

2x+10=4b

Explanation:

If you look at the previous equation, you will notice that

x*2 = 2x and

5*2 = 10.

So now all you need to do is also multiply the right side of the equation with b by 2, just like you did to the left side, and you'll get

2x+10 = 4b.

I hope this helped! :D