Answer:
10
Step-by-step explanation:
It would be 150,000,000,000
Divide by 5 each side
X+2=4
Subtract 2 from each side
X=2
5(2+2)=20
Does work
In algebra when isolating (leaving alone on one side) x, you do the opposite operation, thus multiplying when you are trying to get rid of a division and vice versa
There are 10 tons in 10,000 pounds because a 1,000 pounds makes 1 ton.