Помогите решить уравнения.
9*(х-1)=х+15
(11х+14)-(5*х-8)=25
12-4*(х-3)=39-9х
2*(3х+5)-3*(4*х-1)=11.8
9*(х-1)=х+15
(11х+14)-(5*х-8)=25
12-4*(х-3)=39-9х
2*(3х+5)-3*(4*х-1)=11.8
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Answers & Comments
9x-9=x+15
9x-x=14+9
8x=23
x=23\8=2целых 7\8
2) (11x+14)-(5*x-8)=25
11x+14-5x+8=25
11x-5x=25-8-14
6x=3
x=3:6=0,5
3) 12-4*(x-3)=39-9x
12-4x+12=39-9x
-4x+9x=39-12-12
5x=15
x=15:5=3
4) 2*(3x+5)-3*(4*x-1)=11,8
6x+10-12x+3=11,8
6x-12x=11,8-10-3
-6x=-1,2
x=-1,2:(-6)=0,2