Question

x - 2 + 3 x 5 = 12 + 45

Answer 1

x - 2 + 3 x 5 = 12 + 45

x - 2 + 15 = 57

x + 13 = 57

x = 44

Answer 2

x - 2 + 3 x 5 = 12 + 45

x - 2 + 3 x 5 = 57

x - 2 + 15 = 57

x - 2 = 57 - 15

x - 2 = 42

x = 42 + 2

x = 44

 Vậy x = 44

Answer 3

= 44 nha

Answer 4

25 + 3 x ( x - 8 ) = 106

3 x ( x - 8 ) = 106 - 25

3 x ( x - 8 ) = 81

( x - 8 ) = 81 : 3

x - 8 = 27

x = 27 + 8

x = 35

 Vậy x = 35 

Answer 5

x - 2 + 3 . 5 = 12 + 45

=> x - 2 + 3 . 5 = 57

=> x - 2 + 15     = 57

=> x - 2            = 57 - 15 

=> x - 2            = 42

=> x                 = 42 + 2 

=> x                 = 44

Vậy x = 44

k mình nha !!!

Answer 6

x-2+3x5=12+45=x-2+3x5=47=x-2+8=57=x-2=57-8=x-2=49=x=49+2=51

Answer 7

x - 2 + 3 x 5 = 12 + 45

x - 2 + 3 x 5 = 57

x - 2 + 15 = 57

x - 2 = 57 - 15

x - 2 = 42

x = 42 + 2

x = 44