Question

Solve the equation by inversion method, x + y=4, 2x - y = 5 dow did you solve

Answer 1

Step-by-step explanation:

x+y=4

x=4-y

2(4-y)-y=5

8-2y-y=5

8-3y=5

-3y=-3

y=1

therefore,x=3

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Answer 2

Answer:

X + Y = 4

X = 4y

2 (4 - y) - y = 5

8 - 2y - y = 5

8 - 3y = 5

- 3y = -3

y = 1

therefore,

x = 3

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