Question

 Solve the following; i) -7(3x-1) =4x+9 ​

Answer 1

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 Solve the following; i) -7(3x-1) =4x+9 

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Know:

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$= > -7(3x-1) =4x+9$

$= > - 21x + 7 = 4x + 9$

$= > - 21x - 4x = 9 - 7$

$= > - 25x = 2.....(1)$

$\bold{\red{ x= - \frac{2}{25} }}$

Check from equation 1

$= > - 25x = 2$

$= > {\cancel{- 25}} \times - \frac{2}{\cancel{{25} }}= 2$

$= > 2 = 2$

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Answer 2

Step-by-step explanation:

-7(3x-1)=4x+9

-21x+7=4x+9

-21x-4x =9-7

-25x=2

x=-2/25