<span>-12+2b=12-6b
-12+8b=12
8b=24
b=3</span>
Answer:
here i hope this help im not sure if a can find the exact answer your looking for but here is a formula
Answer:
Lane sold 34 homes.
Nanda sold 102 homes.
Step-by-step explanation:
This question can be solved by a system of equations.
I am going to say that:
Nanda sold x homes
Lane sold y homes
Over the past 6 months they sold 136 homes.
This means that 
Nanda sold 3 times as many homes as Lane.
This means that 
Replacing in the first equation:




Lane sold 34 homes.

Nanda sold 102 homes.
Answer:
Yes
Step-by-step explanation:
They are exact and you can't mess up or accidentally slide the compass or straightedge around. This is just my opinion though.