Question

7x+9y=85/and4x+5y=48elimination method

Answer 1

7x+9y =85.........(1) or 28x+36y=340

4x+5y=48.........(2) or 28x +35y = 336
subt.. equations
28x+36y=340
28x +35y = 336
  y =4
put value of y in equation 1
7x=85-36
7x=49
x=7

Answer 2

7x+9y =85.........(1) or 28x+36y=340

4x+5y=48.........(2) or 28x +35y = 336

28x+36y=340
28x +35y = 336
  y =4

7x=85-36
7x=49
x=7