Question

tim so tu nhien x, biet

a) x : 13 = 41

b) 1428 : x = 14

c) 4x : 17 = 0

d) 7x - 8 = 713 

e) 8(x-3) = 0

g) 0 : x = 0

Answer 1

a, x : 13 = 41

=> x = 41 x 13

=> x = 533

b, 1428 : x = 14

=> x = 1428 : 14

=> x = 102

c, 4x : 17 = 0

=> 4x = 0 x 17

=> x = 0 : 4

=> x = 0

d, 7x - 8 = 713

=> 7x = 713 + 8

=> x = 721 :7

=> x = 103

e, 8( x - 3 ) = 0

( x - 3 ) = 8 : 0

x - 3 = 0

x = 0 + 3

x = 3

g, 0 : x = 0

=> x = 0 : 0

=> x = 0

Answer 2

a, x : 13 = 41

=> x = 41 x 13

=> x = 533

b, 1428 : x = 14

=> x = 1428 : 14

=> x = 102

c, 4x : 17 = 0

=> 4x = 0 x 17

=> x = 0 : 4

=> x = 0

d, 7x - 8 = 713

=> 7x = 713 + 8

=> x = 721 :7

=> x = 103

e, 8( x - 3 ) = 0

( x - 3 ) = 8 : 0

x - 3 = 0

x = 0 + 3

x = 3

g, 0 : x = 0

=> x = 0 : 0

=> x = 0