Răspuns :
x=27,51+10,6
x=38,11
x=1,24:3,1
x=0,4
x=0,7*1,2
x=0,84
2x-1=0,4*1,75
2x=0,7+1
x=1,7:2
x=0,85
x=38,11
x=1,24:3,1
x=0,4
x=0,7*1,2
x=0,84
2x-1=0,4*1,75
2x=0,7+1
x=1,7:2
x=0,85
Rezolvare
a ) x - 10 , 6 = 40 , 01 - 12, 5
x - 10 , 6 = 27 .51
x = 10 , 6 + 27 . 51
x = 38 . 11
b ) 3, 1 * x = 1.24
x = 3 , 1 : 1 , 24
x = 0 , 4
c ) x : 1 , 2 = 0 , 7
x = 0 , 7 x 1 , 2
x = 0 , 84
.
d ) ( 2x - 1 ) : 1 , 75 = 0 , 4
( 2x - 1 ) = 1 , 75 + 0 , 4 = 0 , 7
2x = 0,7 + 1 = 1,7
x = 1, 7 : 2
x = 0 , 85
R : 38 ,11 ; 0 , 4 ; 0 , 84 ; 0 , 85
a ) x - 10 , 6 = 40 , 01 - 12, 5
x - 10 , 6 = 27 .51
x = 10 , 6 + 27 . 51
x = 38 . 11
b ) 3, 1 * x = 1.24
x = 3 , 1 : 1 , 24
x = 0 , 4
c ) x : 1 , 2 = 0 , 7
x = 0 , 7 x 1 , 2
x = 0 , 84
.
d ) ( 2x - 1 ) : 1 , 75 = 0 , 4
( 2x - 1 ) = 1 , 75 + 0 , 4 = 0 , 7
2x = 0,7 + 1 = 1,7
x = 1, 7 : 2
x = 0 , 85
R : 38 ,11 ; 0 , 4 ; 0 , 84 ; 0 , 85