Answer:
The first choice is correct
2r-3r+10=20
Move all terms to the left:
2r-3r+10-(20)=0
add all the numbers together, and all the variables
-1r-10=0
move all terms containing r to the left, all other terms to the right
-r=10
r=10/-1
r=-10
Answer:
f(3) = 23
Step-by-step explanation:
Answer:
18÷n or 18a
Step-by-step explanation:
