Math, asked by vedantsurve45, 10 months ago

Find x if x + y = 5, and x - y = 7​

Answers

Answered by Anonymous
2

Answer:

x = 6

and

y = -1

Step-by-step explanation:

Given ,

x + y = 5........(1)

and

x - y = 7........(2)

Adding equation (1) and (2) we have

x + y + x - y = 7 + 5 \\  \implies2x = 12 \\  \implies \: x = 6

Again , from equation (1)

6 + y = 5 \\  \implies \: y = 5 - 6 \\  \implies \: y =  - 1

Answered by raushankumar3604
3

Answer:

x + y = 5

 x - y = 7​  

-     +     -

_________-

0 +2y = -2

2y = -2

y = -2/2 = -1

now putting the value of y in any equation we get,

x + (-1) = 5

x-1= 5

x= 5+1

x = 6

Step-by-step explanation:

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