145. Найдите корень уравнения:

Решение:

а) \(5x = -60\)

\(x = \frac{-60}{5}\)

\(x = -12\)

б) \(-10x = 8\)

\(x = \frac{8}{-10}\)

\(x = -0.8\)

в) \(7x = 9\)

\(x = \frac{9}{7}\)

г) \(6x = -50\)

\(x = \frac{-50}{6}\)

\(x = -\frac{25}{3}\)

д) \(-9x = -3\)

\(x = \frac{-3}{-9}\)

\(x = \frac{1}{3}\)

е) \(0,5x = 1,2\)

\(x = \frac{1,2}{0,5}\)

\(x = 2,4\)

ж) \(0,7x = 0\)

\(x = \frac{0}{0,7}\)

\(x = 0\)

з) \(-1,5x = 6\)

\(x = \frac{6}{-1,5}\)

\(x = -4\)

и) \(42x = 13\)

\(x = \frac{13}{42}\)

Ответ: а) -12; б) -0.8; в) 9/7; г) -25/3; д) 1/3; е) 2.4; ж) 0; з) -4; и) 13/42.