3x-1-5-x-7-3 solve this with full explanation - Maths - Q-A

3x 1/5 x/7=30ex0ex7(3x 1) 5(x)/35=30ex0ex7(3x 1) 5x=3× 350ex0ex21x 7 5x=1050ex0ex16x=105+70ex0ex16x=1120ex0exx=112/160ex0exx=7Hence, the value of x is 7. ...

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Byju's Answer

Standard XII

Mathematics

Law of Reciprocal

3x-1/5-x/7=3 ...

Question

Solve for $x$ :
$\frac{3 x - 1}{5} - \frac{x}{7} = 3$

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Solution

$\frac{3 x - 1}{5} - \frac{x}{7} = 3 \frac{7 (3 x - 1) - 5 (x)}{35} = 3 7 (3 x - 1) - 5 x = 3 \times 35 21 x - 7 - 5 x = 105 16 x = 105 + 7 16 x = 112 x = \frac{112}{16} x = 7$
Hence, the value of $x$ is $7$ .

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Solve for x:3x-15-x7=3

3x-15-x7=373x-1-5x35=373x-1-5x=3×3521x-7-5x=10516x=105+716x=112x=11216x=7Hence, the value of x is 7.

Solve for $x$ :
$\frac{3 x - 1}{5} - \frac{x}{7} = 3$

$\frac{3 x - 1}{5} - \frac{x}{7} = 3 \frac{7 (3 x - 1) - 5 (x)}{35} = 3 7 (3 x - 1) - 5 x = 3 \times 35 21 x - 7 - 5 x = 105 16 x = 105 + 7 16 x = 112 x = \frac{112}{16} x = 7$
Hence, the value of $x$ is $7$ .