Question

1/3 (7n -1) = 1/4
find the value of x
$1 \div 3(7x - 1) = 1 \div 4$
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Answer 1

Answer:

» 1/[ 3 (7x - 1)] = 1/4

» 21x - 3 = 4

» 21x = 7

» x = 1/3

Answer 2

Step-by-step explanation:

• (1/3)(7x-1) = 1/4

• Equating RHS to 0 by taking 1/4 on LHS, we get

• (1/3) X (7x-1)-(1/4) = 0

• (1/3) X 4 X (7x-1))/4-1/4 = 0

• (1/3) X 4 X (7x-1)-1 = 0

• 28/3 X x-7/3 = 0

• (28/3 X x-7/3)/4 = 0

• (28/3 X x-7/3)/4 = 0 X 4

• 28/3 X x-7/3 = 0

• 28/3 X x-7/3 = 0 + 7/3

• 28/3 X x = 7/3 / 28/3

• x = 7/3/28/3

• x = 1/4

• Hence, x=1/4

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