Question

ajutorrr dau coroana + 5 stele si o inima​

Answer 1

5. a) x-1.5=14.5

x=16

b) x+2=2.25

x=0.25

c) 2x+9.83=1.56×8

2x+9.83=12.48

2x=2.65

x=1.325

d) (0.1+0.2+0.3+0.4+...+0.9)×x =9

4.5x=9

x=2

e) 66.1x+7.89=14.5

66.1x=6.61

x=0.1

6. x+y=4.5

y/2=x => y=2x

x+2x=4.5

3x=4.5

x=1.5

y=3