Răspuns :
8X(300-16z)=36x2
300-16z=72:8
16z=300-9
z=291:16
z=18,18
1056-(5z-686)x4=264:3
1056-(5z-686)=88:4
5z-686=1056-22
5z=1034+686
z=1720:5
z=344
300-16z=72:8
16z=300-9
z=291:16
z=18,18
1056-(5z-686)x4=264:3
1056-(5z-686)=88:4
5z-686=1056-22
5z=1034+686
z=1720:5
z=344
Rezolvare
8 x ( 300 - 16 x z ) : 2 = 36 z= ?
8 x ( 300 - 16z ) = 36 x 2 = 72
( 300 - 16z ) = 72 : 8 = 9
16z = 300 - 9 = 291
z =291 : 16
z = 18 , 18
3 x [ 1056 - ( 5 x z - 14 x 49 ) x 4 ] = 264 z = ?
3 x [ 1056 - ( 5z - 686 ) x 4 ] = 264
[ 1056 - ( 5z - 686 ) x 4 ] = 264 : 3 = 88
1056 - ( 5z - 686 ) = 88 : 4 = 22
5z - 686 = 1056 - 22 = 1034
5z = 1034 + 686 = 1720
z = 1720 : 5
z = 344 R : 18 , 18 ; 344 ;
8 x ( 300 - 16 x z ) : 2 = 36 z= ?
8 x ( 300 - 16z ) = 36 x 2 = 72
( 300 - 16z ) = 72 : 8 = 9
16z = 300 - 9 = 291
z =291 : 16
z = 18 , 18
3 x [ 1056 - ( 5 x z - 14 x 49 ) x 4 ] = 264 z = ?
3 x [ 1056 - ( 5z - 686 ) x 4 ] = 264
[ 1056 - ( 5z - 686 ) x 4 ] = 264 : 3 = 88
1056 - ( 5z - 686 ) = 88 : 4 = 22
5z - 686 = 1056 - 22 = 1034
5z = 1034 + 686 = 1720
z = 1720 : 5
z = 344 R : 18 , 18 ; 344 ;