Question

substitution method
2x+3/y=1 5x-2/y=11/12
​

Answer 1

Answer:

2x+3/y = 1

become, 2x-y = -3 ------(1)

and

5x-2/y = 11/12

become, 180x-11y = 24--------(2)

Multiply the 1 eqn. by 11

22x-11y = -33 ------(3)

Now Substract the eqn2 by 3

180x-11y=24

22x- 11y=-33

---–----------------

158x. = 57

x. = 57/158

put the x= 57/158 in eqn. 1

57/79 -y = -3

-y = -3 -57/79

-y = -274/79

(x,y)= (57/158, -274/79) is the answer of the given question.