Answer:
7x-17y
Step-by-step explanation:
We need to find the expression which represents the difference when (-2x+10y) is subtracted from (5x−7y) . Let the result is R.
So,
R = (5x−7y)-(-2x+10y)
Solving brackets as follows :
R = (5x−7y)+2x-10y
taking like terms together
R = (5x+2x)+(-7y-10y)
R = 7x-17y
Hence, when (-2x+10y) is subtracted from (5x−7y) the result is (7x-17y).
2 1/2x + 1
9x -7/2x-3x +1 = 9x - 3 1/2x - 3x + 1 = 2 1/2x + 1
1. 5x-3
2. 5÷5 -3÷5
3. x= -3/5
4. DB
5