Question

solve this in substitution method x+y=14and x-y=4

Answer 1

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$x + y = 14 ---- > (i) \\ \\ x - y = 4 -----> (ii) \\ \\ Using \: Substitution \: Method : \\ \\ From \: eq.(1) \\ x + y = 14---->(iii) \\ x = 14 - y \\ \\ Putting \: the \: value \: of \: x \: in \: eq.(2) \\ \\=> x - y = 4 \\=> 14 - y - y = 4 \\=> 14 - 2y = 4 \\ =>- 2y = - 10 \\=> y = 5 \\ \\ Now ,Putting \: the \: value \: of \: y \: in \: eq.(3) \\ = > x = 14 - y \\ = > x = 14 - 5 \\ x = 9$

SO, The value of x is 9 & y is 5 ✔
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Answer 2

x-y= 4

x= 4+ y.........(1)

x+y=14

4+y+y=14......... from (1)

2y+4=14

2y=14-4=10

2y=10

Y=10/2=5

Put y=5 in x+y=14

x+5=14

x=14-5=9

x=9, y=5