Question

solve.. x+y-14=0 and x-y-4=0 by using sub-method

Answer 1

Hi friend
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Your answer
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SOLVING (BY METHOD OF SUBSTITUTION)
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x + y - 14 = 0

=> x = 14 - y .......(1)

Again,
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x - y - 4 = 0

=> x - y = 4

=> (14 - y) - y = 4 [ From (1)]

=> 14 - y - y = 4

=> - 2y = 4 - 14

=> - 2y = - 10

=> y = - 10/- 2

=> y = 5

Then,
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x = 14 - y = 14 - 5 = 9

Therefore,
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x = 9

y = 5

HOPE IT HELPS