From my work I believe it should be the third one.
Add two like terms: 16x+(-9x)=7x
Add 15 to both sides: 7x=28
Divide 7 on both sides: x=4
Answer:
50/50
Step-by-step explanation:
Answer:
with what?
Step-by-step explanation:
Answer:
a c
Step-by-step explanation: