Question

Find the value of x from the equtions 5x-y=7 if y=3 and when y=8.​

Answer 1

Answer:

1)5x-y=7

let put y=3 in given equation

5x-3=7

5x =7+3

5x =10

x =10/2

x= 5

2)let put y=8

5x-8=7

5x =7+8

5x = 15

x = 15/3

×=5

Answer 2

Answer:

5x-y=7 put y=3

5x-3=7

5x=7+3

5x=10

x=10\5

x=2

now in equation

5x-y=7. put y=8

5x-8=7

5x=7+8

5x=15

x=15\5

x=3