Question

Find such that : +(−23)=−3724a.−5324b. −1312c. −3521d. −2124

Answer 1

Answer:

Given System of Equations are:

2x+y=23 ...(1)

4x−y=19 ...(2)

Now adding both the equation will have:

6x=42

x=7

Now substituting x=7 in in equation (1)

⇒2(7)+y=23

⇒14+y=23

⇒y=9

Now substituting x=7 and y=9 in 5y−2x

⇒5(9)−2(7)

⇒45−14

⇒31

Now Substituting Now substituting x=7 and y=9 in

x

y

−2

⇒

7

9

−2

⇒

7

9−14

⇒

7

−5

Step-by-step explanation:

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