Question

The expression

3(x+6)-x
can be simplified to the form
2x + a)
What is the value of a?​

Answer 1

a = 18

Explanation:

3(x+6)-x = 2x + a

Distribute

3x +18 -x = 2x+a

2x +18 = 2x+a

Subtract 2x from each side

18 = a