Question

помагите пржалуйста срочно номер 1085

Answer 1

1) 34*(x+1.2)-1.2=60
34x+40.8-1.2=60
34x+39.6=60
34x=-39.6+60
34x=20.4
x=0.6

2) 295.1/(x-3)-12.7=0.3
295.1/(x-3)=13
x-3=22.7
x=22.7+3
x=25.7

3) 15*(y-0.2)+17.8=38.8
15y-3+17.8=38.8
15y+14.8=38.8
15y=-14.8+38.8
15y=24
y=24/15
y=1.6

4) 2.136/(1.9-y)+1.12=8.24
2.136/(1.9-y)=-1.12+8.24
2.136/(1.9-y)=7.12
1.9-y=2.136/7.12
1.9-y=0.3
-y=-1.9+0.3
-y=-1.6
y=1.6