Question

4x-y=11 , -8x+2y=-22 find x and y
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Answer 1

Answer:

4x-y=11 — 1

-8x+2y=-22 — 2

take 2 common

-2(4x+y) = -22

4x+y = 11 — 3

using elimination method

4x - y = 11

4x +y = 11

—————–

8x = 11

x = 11/8

put value of x in 1

4x - y = 11

4(11/8) - y = 11

11/2 - y = 11

y = 11/2 - 11

y = -11/2