Question

solve the following pair of linear equations by the substitution method. x+y =14 , x-y =14​

Answer 1

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Answer 2

Firstly, the correct question is— x+y =14, x- y= 4 ( it will be 4, not 14)

Answer

From equation 1–
x+y= 14
x= 14-y

Substituting x= 14- y in equation 2–
x- y = 4
14-y -y = 4
14 - 2y = 4
-2y= 4 - 14
-2y = -10

y = -10/ -2
= -5

Putting y=5 in equation 2–
x - 5 = 4
x= y + 4
x = 5+4
x=9

Hence, x = 9 And
y= 5




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