Answer:
2*40 + x*100 = (2+x)*70
Step-by-step explanation:
B. 117, 121
7x+4
Distribute:
=(3)(4x)+(3)(−2)+−5x+10
=12x+−6+−5x+10
Combine Like Terms:
=(12x+−5x)+(−6+10)
=7x+4