Answer:
10x+10y
Step-by-step explanation:
6(x+2y)-2(y-2x)
=6x+12y-2y+4x
=10x+10y
See, its 90/-7.2
So, first multiply and divide by -1 so the equation doesn't get affected
Then it comes,
= -90/7.2
Now remove the point and multiply with 10
= 900/72
Thereofore, the resulting answer would be 12.5
3x(3x-2y)
you have to find a common factor between the two numbers. in this case it's three, so you just divide each number by three.