Question

tìm x

( 17 - x ) - 12 = 6

27 - ( 5 - x ) = 31

Answer 1

a, (17-x)-12=6

17-x-12=6

5-x=6

x=-1

Vậy x=-1

b, 27-(5-x)=31

27-5+x=31

22+x=31

x=31-22

x=9

Vậy x=9

Answer 2

17-x = 12+6. 17-x=18. X=17-18 x=-1

Answer 3

a)\(\left(17-x\right)-12=6\\ < =>17-x=18\\ < =>x=-1\)

b)\(27-\left(5-x\right)=31\\ < =>5-x=-4\\ < =>x=9\)

Answer 4

( 17 - x ) - 12 = 6

(17 -x ) = 6+12

17 - x = 18

x = 17-18

x = 6

Vậy x =6

27 - ( 5 - x ) = 31

5-x = 27-31

5-x= -4

x =5-(-4)

x = 9

Vậy x= 9

Answer 5

( 17 - x ) - 12 = 6

17-x = 6+12

17-x = 18

x = 17-18

x = -1

Vậy x = -1

Answer 6

(17-x)-12=6

17-x=6+12

17-x=18

x=17-18

x=-1

27-(5-x)=31

5-x=27-31

5-x=-4

x=5-(-4)

x=5+4

x=9