Question

2-3x-1/4=1/7
find the value of X

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Answer 1

Given:

$\dfrac{2-3x-1}{4} = \dfrac{1}{7}$

What To Find:

The value of x.

Solution:

By cross multiplying,

⇒ 7(2 - 3x - 1) = 4

Solve the brackets,

⇒ 14 - 21x - 7 = 4

Rearrange the terms in LHS,

⇒ 14 - 7 - 21x = 4

Subtract 7 from 14 in LHS,

⇒ 7 - 21x = 4

Take 4 to LHS and -21x to RHS,

⇒ 7 - 4 = 21x

Subtract 4 from 7 in LHS,

⇒ 3 = 21x

Take 21 to LHS,

⇒ $\dfrac{3}{21}$ = x

Cancel 3 and 21,

⇒ $\dfrac{1}{7}$ = x

∴ Therefore the value of x is $\dfrac{1}{7}$.

Answer 2

Answer:

2-3x-1/4=1/7

by cross multiplayer

7(2-3x-1) =4

14-21x-7 =4

7-21x =4

7-4 = 21x

3 = 21x

3/21 = x

1/7 =x

complete solution