2x+7 = 4x+2 হলে x এর মান কত?

B 2

C 3

D -1

Solution

Correct Answer: Option C

Given that,

2x + 7 = 4x + 2

বা, 2x + 7 = (22)x + 2

বা, 2x + 7 = 22x + 4

বা, x + 7 = 2x + 4

বা, 2x - x = 7 - 4

So, x = 3

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