Question

21. If 2x + y = 35, 3x + 4y = 65, find the value of
y​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

x=17

y=1

Step-by-step explanation:

2x+y=35 -----(1)

3x+4y=65 ----(2)

2x+y=35=-2x-y=-35=-8x-4y=-140 -----(3)

Adding (2) and (3) we get

3x-8x+4y-4y=65-140

-5x=-85

x=17

Now substituting

2x+y=35

34+y=35

y=1

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