Question

find 4 solution of the following equation

2x + Y equal to 7 ​

Answer 1

Answer:

2x + y = 7 => y = 7-2x

Let x = 0, then y = 7 - 2(0) = 7-0 = 7

Let x = 1, then y = 7 - 2(1) = 7-2 = 5

Let x = 2, then y = 7 - 2(2) = 7-4 = 3

Let x = 3, then y = 7 - 2(3) = 7-6 =1

Answer 2

$\huge{ \mathfrak{\purple{Answer}}}$

(0, 7), (1, 5), (2, 3) and (3, 1)

$\huge{ \mathfrak{\purple{Explanation}}}$

Given

2x + y = 7

So,

- y = 7- 2x

Put x = 0, we get y = 7 - 2(0) = 7 - 0 = 7

Put x = 1, we get = 7 - 2(1) = 7 - 2 = 5

Put x = 2, we get y = 7 - 2(2) = 7 - 4 = 3

Put x = 3, we get y = 7 - 2(3) = 7- 6 = 1

:: Four solutions are (0, 7), (1, 5), (2, 3) and (3, 1).

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