Question

Resuelva cada ecuación:​

Answer 1

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

a.

$\frac{3}{4} x = \frac{5}{8} \\ \\ 8(3x) = 5(4) \\ 24x = 20 \\ \\ x = \frac{20}{24} \\ \\ x = \frac{5}{6}$

b.

$\frac{2}{5} x = \frac{3}{7} \\ \\ 2x(7) = 3(5) \\ 14x = 15 \\ \\ x = \frac{15}{14}$

c.

$- \frac{3}{7} x = \frac{5}{4} \\ \\ - 3x(4) = 7(5) \\ - 12x = 35 \\ x = - \frac{35}{12}$

d.

$4x = - \frac{2}{3} \\ 4x(3) = - 2 \\ 12x = - 2 \\ \\ x = - \frac{2}{12} \\ \\ x = - \frac{1}{6}$

e.

$- \frac{1}{3} x = 5 \\ \\ - 3x = 5(3) \\ - 3x = 15 \\ \\ x = - \frac{15}{3} \\ \\ x = - 5$

f.

$\frac{ - 3}{11} x = \frac{ - 5}{22} \\ \\ - 3x(22) = - 5(11) \\ \\ - 66x = - 55 \\ \\ x = \frac{ - 55}{ - 22} \\ \\ x = \frac{5}{2}$