Question

уровнение -1,3(7+4х)-11=-4,5​

Answer 1

Ответ на уравнение:

-1,3(7+4х)-11=-4,5​

-(13/10)*(7+4*x)-11 = -(9/2)

-13/107+4*x-11 = -(9/2)

-13/107+4*x-11 = -9/2

-201/10 - 26*x/5 = -9/2

-26x/5 = 78/5

x = 78/5 / (-26/5)

x = -3