Question

IF 2x +39=5 and 3x +2y=10, then find
the value of x-Y?​

Answer 1

Answer:

$for \: finding \: value \: of \: x \\ 2x + 39 = 5 \\ 2x = 5 - 39 \\ 2x = - 24 \\ x = \frac{ - 24}{2} \\ x = - 12 \\ for \: finding \:value \: of \: y \\ 3x + 2y = 10 \\ x = - 12 \\ (3 \times - 12) + 2y = 10 \\ - 36 + 2y = 10 \\ 2y = 10 + 36 \\ 2y = 46 \\ y = \frac{46}{2} \\ y = 23 \\ therefore, \: x = - 12 \: and \: y = 23$

Answer 2

Step-by-step explanation:

2x + 39 = 5

2x = 5 – 39

2x = –34

x = –34 ÷ 2

x = – 17

3x + 2y = 10

3 (17) +2y =10

51 +2y =10

2y = 10– 51

2y = –41

y = –41÷ 2

y = –20.5

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