*Which of the following is not solution of equations 3x - 2y = 4 and 6x - 4y = 8?*
1️⃣ x = 5 and y = 3
2️⃣ x = 2 and y = 1
3️⃣ x = 6 and y = 7
4️⃣ x = 4 and y = 4
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1️⃣ x = 5 and y = 3
this is the answer for your question
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1) x = 5 and y = 3 is not the solution of the equations.
To solve this question, substitute the values in each equation:
- x = 5 y = 3
- Substituting x and y in first equation
3 x 5 - 2 x 3
= 15 - 6 = 11
- Substituting x and y in second equation
6 x 5 - 4 x 3
= 30 -12 =18
Thus, option 1 is not correct.
2. x = 2 y = 1
- Substituting x and y in first equation
3 x 2 - 2 x 1
= 6 - 2 = 4
- Substituting x and y in second equation
6 x 2 - 4 x 1
= 12 - 4 = 8
Thus, option 2 is correct.
3. x = 6 y = 7
- Substituting x and y in first equation
3 x 6 - 2 x 7
= 18 - 14 = 4
- Substituting x and y in second equation
6 x 6 - 4 x 7
= 36 - 28 = 8
Thus, option 3 is correct.
4. x = 4 y = 4
- Substituting x and y in first equation
3 x 4 - 2 x 4
= 12 - 8 = 4
- Substituting x and y in second equation
6 x 4 - 4 x 4
= 24 - 16 = 8
Thus, option 4 is correct.
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