Answer:
non-linear
Step-by-step explanation:
it is nonlinear because if the numbers go up and then down then its not a straight line. therefore its not linear.
b=8
7b-7-8b=-15
Combine like terms
-b-7=-15
Add 7 on both sides
-b=-15+7
-b=-8
Divide by -1
b = 8
