Question

Check whether (2-3) is a solution of 2x - y = 7​

Answer 1

Step-by-step explanation:

Find three different solution of the equation.

2x - y = 7

EASY

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ANSWER

Given equation 2x−y=7

(i)2x−y=7

If x=2 put the equation we get

2×2−y=7

⇒4−y=7

⇒−y=7−4

⇒y=−3

(2,-3)

(ii)2x−y=7

If x=3 put the equation we get

2×6−y=7

⇒6−y=7

⇒−y=7−6

⇒y=−1

(3,-1)

(i)2x−y=7

If x=4 put the equation we get

2×4−y=7

⇒8−y=7

⇒−y=7−8

⇒y=1

(4,1)

Answer 2

x = 2

y = -3

2x - y = 7

2(2) - (-3) = 7

4 + 3 = 7

7 = 7

so it is a solution

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