Question

Solve the following pair of linear equations by the elimination method:x+y=4x-y=4

Answer 1

Step-by-step explanation:

x +y = 4 - - - - (i)

x - y = 4 - - - - (ii)

Adding (i) and (ii)

x + y = 4

+ x - y = 4

2x+0 = 8

Therefore, 2x = 8

x = 4

x + y = 4

4 + y = 4

y = 4-4

y = 0

Therefore, x = 4

y = 0

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