Question

1). (-1)*3+(- 1)*2+)-1)*1
2).9 supra (2x)=18 supra (x-1)
3).(3x-2)supra 7- (x+4) supra 3
Urgenttt!​

Answer 1

Răspuns:

1) -3 -2-1 =-6

2) 9/2x = 18/ (x-1)

2x*18=9(x-1)

36x=9x-9 /-9x

27x=-9 => x= -3

3) (3x-2)/7 - (x+4)/3=( 9x-6 - 7x- 28)/21=(2x-34)/21