Question

3x -5y=20 7x+2y= 17 solve by elimination method

Answer 1

Answer:

Step-by-step explanation:

multiply first equation with 2

and multiply second equation with 5

we get

6 x-10 y=40

35 x+10 y=85

41 x=125

x=3.048

then substitute x value in y

we get

3(3.048)-5 y=20

-5 y=20-9.144

y=-2.1712