Question

4x+ 7y - 10
4x - 35y = 35
salve
by Cross multiplication Method​

Answer 1

Answer:

4x-7y=10

4x=10+7y

x=10+7y/4 ...........(i)

put value of x from eqation (i) in given equation

4x-35y=35

4(10+7y/4)=35

10+7y=35

7y=35-10

7y=25

y=25/7 ..........(ii)

put value of y from (ii) equation in given one

4x+7y=10

4x+7(25/7)=10

4x+25=10

4x=10/25

4x=2/5

x=2/5(4)

x=8/5