Question

-3.7*（2.5x-7.6）=-3.66+2.1x

Answer 1

-3.7*(2.5x-7.6)= -3.66+2.1x
-9.25x+28.12+3.66-2.1x
-11.35x+31.78
-11.35x= -31.78
x= -31.78: (-11.35)
x= 2.8

Answer 2

спасибо

Answer 3

Пожалуйста))))