Question

solve x+y=27 and x-y=7 by elimination method ​

Answer 1

Answer:

x+y=27

x-y=7

2x=34

x=34/2

x=17

put the value of x in equation 1

17+y=27

y=27-17

y=10

Answer 2

Answer:

x + y = 27---------(Eq 1)

x - y = 7-----------(Eq2)

From Eq 1 and Eq 2,

x+x+y-y=27+7

2x = 34

x = 17

We can substitute and get the value of y as 10

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