1) 1-4(x+1)=1,8-1,6
1-4x-4=1,8-1,6
-4x=0,2-1+4
-4x=3,2
-x=-0,8
x=0,8
2)3(0,5x-4)+8,5=10x-11
1,5x-12+8,5=10x-11
1,5x-10x=12-8,5-11
-8,5x=-7,5
x=0,88
- 7/12; 2,132; -0,6; 2,123; 2,(13)<span>
</span>-0,6 и - 7/12
-6/10 и -7/12
-3/5 и -7/12
-36/60 < -35/60
2,132; 2,123; 2,(13)
2,132 и 2,123 и 2,(13)
2,132 и 2,123 и 2,1313
2,123 < 2,(13) < 2,132
Итог:
-36/60 < -35/60 < 2,123 < 2,(13) < 2,132
-0,6 < - 7/12 < 2,123 < 2,(13) < 2,132
-x√7-2√7= -√7(x+2)
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{x=(17+y)/4 {x=(17+y)/4 {x=(17+y)/4{x=(17+y)/4{x=(17-1)/4 {x=4
{ y+6((17+y)/4) {y+((102+6y)/4)=23 {4y+102+6y=92 {10=-10y {y=-1