10 x 75 - 15 x = 65
750 - 15x = 65
-15x = 65 - 750
-15x = -685
x = -685 / -15
x = 45.67
Ответ: x = 45.67
10 x 75 - 15 x = 65
750 - 15x = 65
-15x = 65 - 750
-15x = -685
x = -685 / -15
x = 45.67
Ответ: x = 45.67