Question

2x + 5y = 1 is multiplied by 4

Answer 1

APPLY THIS METHOD→→

• x+y=4 ___(1), 2x−5y=1__(2)

multiply eq. (1) by 2.

and then subtract eq. (2)

2x+2y=8

2x−5y=1

- + -

____________

7y=7

y=1

x+y=4

x+1=4

x=3