Question

28-7x=21 solve this question ​

Answer 1

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Answer 2

28-7x=21

-7x=21-28   {When we transfer +28 on the other side, it will become negative.}

-7x= -7

x=$\frac{-7}{-7}$

x=1  {-/- = +}

Verification: 28-7*1= 28-7 = 21

Hence the value for x=1 is correct.

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