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14-06-2019
Mathematics

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If 2x+y = 6 and x−6=y, what is the value of x?

(A) 0 (B) 2 (C) 3 (D) 4 (E) 6

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Аноним Аноним

14-06-2019

Answer:

x = 4

Step-by-step explanation:

2x + y = 6 ... (i)

x - 6 = y ... (ii)

y = 6 - 2x ... (i)

y = x - 6 ... (ii)

So,

6 - 2x = x - 6

x + 2x = 6 + 6

3x = 12

x = 12/3 = 4

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