Question

What is the solution of equations: 2x - y = 5, 3x + 2y = 11 .​

Answer 1

Answer:

2x - y = 5 .....(I)

3x + 2y = 11 ....(II)

Multiplying (I) with 2 we get

4x - 2y = 10 ....(III)

Adding (II) with (III)

7x = 21

⇒⇒ y = 1

Step-by-step explanation:

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Answer 2

Answer:

$2x - y = 5 \: \: .....(1) \\ 3x + 2y = 11 \: \: .....(2) \\ \\ (1) \times 2 = )4x - 2y = 10 \: \: ......(3) \\ \\ (3) + (2) = )7x = 21 \\ = )x = \frac{21}{7} \\ = )x = 3$

substitute x=3 in (1)

$2(3) - y = 5 \\ 6 - y = 5 \\ 6 - 5 = y \\ 1 = y$

therefore,

x=3,y=1 is the answer .