Question

Simplify 18-2[x + (x - 5)].
O8-4x
28 - 4x
28 - 2x

Answer 1

28-4x

Explanation:

Step 1: Open most inner bracket and simplify

=18-2(x+x-5)

=18-2(2x-5)

Step 2: Expand brackets by multiplying 2 in and simplify

=18-2(2x)-2(-5)

=18-4x+10

=28-4x

Therefore the answer is 28-4x