Question

2x-3/5 + X + 3 /4 = 4x + 1/7​

Answer 1

$2x - \frac{3}{5} + \frac{x + 3}{4} = \frac{4x + 1}{7}$

$\implies\frac{10x - 3}{5} + \frac{x + 3}{4} = \frac{4x + 1}{7}$

$\implies \frac{(10x - 3)4 + 5(x + 3)}{20} = \frac{4x + 1}{7}$

$\implies\frac{40x - 12 + 5x + 15}{20} = \frac{4x + 1}{7}$

$\implies\frac{45x + 3}{20} = \frac{4x + 1}{7}$

$\implies\frac{45x + 3}{20} - \frac{4x + 1}{7} = 0$

$\implies\frac{(45x + 3)7 - 20(4x + 1)}{140} = 0$

$\implies\frac{315x +21 - 80x - 20 }{140} = 0$

$\implies \frac{235 x+ 1}{140} = 0$

$\implies\small \: 235x + 1 = 0$

$\implies\small \: 235x = - 1$

$\implies x = \frac{ -1 }{235} \implies \: x = 235$

$exponent \: law \: x = - \frac{ - 1}{a} = a$

Hope its help u.