Question

am si eu nevoie cine ma ajuta ii dau coroana.
a)x-3,5=7
b)1supra2 ×x=2
c)5x-14=1
d)4x=17
e)x+9,83=15,6×8
f)x÷10=78,59
g)5×7,9+x=74,7
h)78,36÷6,53+x=18,4
i)x+3,(1)+5,(3)=14,(4)​

Answer 1

Răspuns:

a)x=7-3,5

x=2,5

b)

2*x=2

x=2*2

x=4

c)

5x-14=1

5x=14+1

5x=15

x=15:5

x=3

d)

4x=17

x=17:4

x=4,5

e)x+9,83=15,6*8

x=124,8-9,83

x=114,97

f)x:10=78,59

x=78,59*10

x=785,9

g)5*7,9+x=74,7

39,5+x=74,7

x=74,7-39,5

x=35,2

h)78,36:6,53+x=18,4

12+x=18,4

x=18,4-12

x=6,4

i)x+3=56-15

x+3=41

x=41-3

x=38

Explicație pas cu pas:

*=inmultit