Question

1.
Which expression is equal
to 3(5x - 6) - 2(4x + 5)?
A 7x - 1
B 9x - 1
C 9x - 13
D 7X – 28

Answer 1

Answer:

D 7x -28 i think it is like this

Answer 2

3(5x-6)-2(4x+5)
15x-18-8x-10
Collect like terms:
15x-8x-18-10
= 7x-28