Question

FInd the value of b so that x=2 is a solution to the equation below.

b(2x+6)=30

Answer 1

b = 3

Explanation:

We already know that x = 2, so just plug it back into the equation to solve for the variable b.

`b(2(2)+6)=30`

`b(4+6)=30`

`10b=30`

`b=3`

We can check this by plugging it back in:

`3(2(2)+6)=30`

`3(10)=30`

`30=30`

This is the correct solution :)