Solve the pair of linear equation x – y = 2 and x + y = 4
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Answer:
x=3 & y=1
Step-by-step explanation:
x-y=2 ...(1)
x+y=4 ...(2)
From equation (1),we get
x=y+2 ...(3)
Substituting x=y+2 in equation (2),we get
(y+2)+y=4
y+2+y=4
2y+2=4
2y=4-2
2y=2
y=1
Substituting y=1 in equation (3),we get
x=1+2
x=3
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