Question

8x-3y=8 2x-7y=4 solve by substitution method

Answer 1

Answer:

8x-3y=8, it means, x= 8+3y/8

put this value in second equation

2(8+3y/8)-7y= 4

after solving this, we get y= 48/25

put this value in equation first

8x-3×48/25=8

after solving this, we get x= 43/25