Math, asked by tctechnical01, 9 months ago

If x = a, y = b is the solution of the equation x − y = 6 and x + y = 4 then the vlaue of a

and b are, respectively.

(a) 3 and 5 (b) 5 and -1 (c) 5 and 1 (d) -1 and -3

plzz answer I will mark as brilliantist​

Answers

Answered by kerdarilinlaitstep
3

Answer:

b) 5 and -1

Step-by-step explanation:

given: x - y = 6

x = 6 + y {equation 1}

And, x + y = 4

y = 4 - x

y = 4 - (6 + y) { from equation 1, x = 6 + y}

y = 4 - 6 - y

y = -2 - y

y + y = -2

2y = -2

y = -2/2

y = -1

substituting "y = -1" in equation 1

x = 6 + y

x = 6 + (-1)

x = 6 - 1

x = 5

from the question since, x = a and y = b

therefore, a = 5 and b = -1

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