Hard Math Class 9 Level 1

In the linear equation 2x + 3y = 18 if y = 2x then what is x?

रेखीय समीकरण 2x + 3y = 18 में यदि y = 2x हो तो x का मान क्या होगा?

A 2 / 2 B 3 / 3 C 4 / 4 D 6 / 6
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Correct Answer

B. 3 / 3

Explanation

Putting y = 2x gives 2x + 6x = 18 so 8x = 18 and x = 9/4.

y = 2x रखने पर 2x + 6x = 18 इसलिए 8x = 18 और x = 9/4 होता है।

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