Question

Решите уравнения, СРООЧНО!!!)

Answer 1

А) ((5х-4)/2)-((2х+1)/3)=-(1/5)(х-29)|×30
15(5х-4)-10(2х+1)=-6(х-29)
75х-60-20х-10=-6х+174
75х-20х+6х=174+60+20
61х=254|÷61
х=4,1639
х~4,164

б) ((3+2х)/3)-(((х+1)/5)-((1-х)/6))=1|×30
10(3+2х)-(6(х+1)-5(1-х))=30
30+20х-(6х+6-5+5х)=30
30+20х-11х-1=30
20х-11х=30-30+1
9х=1|÷9
х=(1/9)

в) ((2х+1)/2)-((3+4х)/9)+0,5=х|×18
9(2х+1)-2(3+4х)+0,5×18=18х
18х+9-6-8х+9=18х
18х-8х-18х=-9+6-9
-8х=-12|÷(-8)
х=(-12)/(-8)
х=1,5

г) ((3х-1)/5)-((1-2х)/2)=х-((1/4)(1-3х))|×20
4(3х-1)-10(1-2х)=20х-5(1-3х)
12х-4-10+20х=20х-5+15х
32х-14=35х-5
32х-35х=-5+14
-3х=9|÷(-3)
х=9/(-3)
х=-3