Question

2x+y=18 and x- y=3 find x​

Answer 1

Answer:

please don't know answer

Answer 2

Answer:

Question

✳️2x+y=18 and x- y=3 find x

Solution ⬇️

✍️2x+y=18..(1)

✍️x-y=3..(2)

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✳️3x=21...(adding equation 2 from 1)({-y}{+y} cancelled because it is ({-}{+} sign)

$= = > 3x = 21 \\ = = > x = \frac{21}{3} = 7$

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✳️x=7

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• Substituting value x=7 in equation 2

✍️x-y=3..(2)

✍️7-y=3

✍️-y=3-7

✍️-y=-4

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✳️y=4

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➡️(x,y)(7,4)is the solution of the given quadratic equation

Step-by-step explanation:

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