Question

Putin ajutor la aceste2 ex?

25 puncte,coroana inima si 5 stele​

Answer 1

4x+9=5
4x=5-9
4x=-4
x=-1

2x+2-10x-35=8x-1
2x-10x-8x=-1-2
-8x-8x=-3
-16x=32
x=-2

x+2*y-3=10
x+y=8
x=4
6*(y-3)=10
13 supra6

x+5=8
x=3
x= -3

3x+5<11
3*1+5=8
3*2+5=11

2x-3<4x-1
2*2-3<4*2-1
1<15
toate numerele
x<7
-infinit,1,2,3,4,5,6,7
x-6<8
x<14
x=1,2,3,4,5,6,7,8,9,10,11,12,13,14