Question

ayuda! quiero saber como resolverlo, entenderlo porfa!

3x/4-5/7=2x

Answer 1

$\frac{3x}{4} \times 28 - \frac{5}{7} \times 28 = 2x \times 28$

$7 \times 3x - 4 \times 5 = 56x$

$21x - 20 = 56x$

$21x = 56x + 20$

$21x - 56x = 20$

$- 35x = 20$

$x = - \frac{4}{7}$