Question

*Which of the following represents the solution of 9x + 7y = 88?* 1️⃣ x = 8, y = 2 2️⃣ x = 9, y = 1 3️⃣ x = 10, y = -1 4️⃣ x = 7, y = 3​

Answer 1

Answer:

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Answer 2

Given :- Which of the following represents the solution of 9x + 7y = 88?

1) x = 8, y = 2

2) x = 9, y = 1

3) x = 10, y = -1

4) x = 7, y = 3

Solution :-

checking all given options one by one we get,

1) x = 8, y = 2

→ 9x + 7y = 88

→ 9 * 8 + 7 * 2 = 88

→ 72 + 14 = 88

→ 86 ≠ 88

2) x = 9, y = 1

→ 9x + 7y = 88

→ 9 * 9 + 7 * 1 = 88

→ 81 + 7 = 88

→ 88 = 88

3) x = 10, y = -1

→ 9x + 7y = 88

→ 9 * 10 + 7 * (-1) = 88

→ 90 - 7 = 88

→ 83 ≠ 88

4) x = 7, y = 3

→ 9x + 7y = 88

→ 9 * 7 + 7 * 3 = 88

→ 63 + 21 = 88

→ 84 ≠ 88

therefore, Option (2) x = 9, y = 1 represents the solution of 9x + 7y = 88 .

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