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20-12-2019
Mathematics

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if 3x-y=27 and 3x+y=243 what is the value of x?

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elimRsjsksksk elimRsjsksksk

20-12-2019

Answer: 4

Explanation:
Given that 3x−y=27, 3x+y=243
⇒3x−y =33 , 3x+y=35
=> x-y=3, x+y=5
=> x = 4

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