Question

DETERMINATI TERMMENUL NECUNOSCUT DIN PROPORTIILE
X SUPRA2=25SUPRA5
8SUPRAX=4SUPRA3
18XSUPRA15=XSUPRA5
XSUPRA6=2
1SUPRA7=3SUPRAX
7+XSUPRA3
0,2supra0,3=xsupra9
0,(5)supra0,(3)=xsupra15
2supra3supra6=4suprax
1supra5supra1supra7=xsupra10

Answer 1

X/2=25/5
x/2=5
x=10

8/X=4/3
x=3*8/4=6

18X/5=X/5

X/6=2    x=12

1/7=3/X
x=3*7=21

7+x/3 ????

0,2/0,3=x/9
2/3=x/9
x=9*2/3=6

0,(5)/0,(3)=x/15
(5/9 ) /(3/9) =x/15
5/9 * 9/3 =x/15
5/3=x/15
x=5*15/3=25

2/3/6=4/x
2/18=4/x
x=4*18/2=36

(1/5) /(1/7)=x/10
1/5 *7/1=x/10
7/5=x/10
x=7*10/5=14