Question

решите уравнение:
-15 13*(1.9х+5.7)=0

Answer 1

-5*1.9x - 5*5.7 = 0
-9.5x - 28.5 = 0
-9.5x = 28.5
x = -3

Answer 2

спасииибо большое)))

Answer 3

:-)