Mathematics: Decide whether 4 is a solution of 9x - 6 = 7x

Well Group 1 is 30Group 2 is 10Group 3 is 30.So Group 2 is most biased...

Decide whether 4 is a solution of 9x - 6 = 7x

Mlmyers81

03.07.2021

No, 4 is not a solution of 9x - 6 = 7x .

Here's why:-

$9x - 6 = 7x \\ ⇢ 9x - 7x = 6 \\ ⇢ 2x = 6 \\ ⇢ x = \frac{6}{2} \\ ⇢ x = 3$

Clearly, the value of is 3.

${ \bf{ \underbrace{To\:verify:}}}$

$9x - 6 = 7x \\ ⇢ 9 \times 3 - 6 = 7 \times 3 \\ ⇢ 27 - 6 = 21 \\ ⇢ 21 = 21 \\ ⇢ L.H.S.=R. H. S$

Hence verified.

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