Question

Simplify (4x − 6) + (3x + 6) out of these what one is right?

a.7x
b.− 12
c.x
d.7x + 12

Answer 1

a. 7x

Explanation:

(4x - 6) + (3x + 6)

= 4x - 6 + 3x + 6

Combine like terms

= 4x + 3x - 6 + 6

= 7x

Ans: a. 7x

Answer 2

a-7x

in this case we can forget about the brackets, we can add 4x with 3x to get 7x, and add 6 to -6 which gives us 0, therefore we lose it and are left with only 7x