Question

use the method of substitution to solve eachother the pair of simultaneous equation X + Y = 0, x _y=2​

Answer 1

Answer:

X + Y =0

X - Y = 2

X = 2+Y

put this value in 1st equation

2 + Y + Y = 0

2y = -2

y = -2/2

y = -1

put y's value in 1st equation

X + [-1] = 0

x = 1

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Answer 2

Answer:

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Step-by-step explanation:

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