Question

решите уравнение=a) -3(x+3)=-12..........b)0,02x+1,38=-0,02.............B)5/x=-3/4

Answer 1

$a) - 3x - 9 = - 12 \\ - 3x = - 3 \\ x = 1$

$b)0.02x = - 1.4 \\ x = - 70$

$c)5 \div x = - 0.75 \\ x = 5 \div ( - 0.75) \\ x = - 6 \frac{2}{3}$