Question

Solve the simultaneous equations of x + y = 4 and 2x - y = 2 graphically​

Answer 1

Answer:

y = 4 - x

y = -2 + 2x

Step-by-step explanation:

x + y = 4

2x - y = 2

y = 4 - x

-y = 2 - 2x -> (A)

• (A) . (-1)

-y = 2 - 2x

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

y = -2 + 2x

y = 4 - x

y = -2 + 2x

Answer 2

y=-2+2x

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