Question

4 Tìm​ số​ tự​ nhiê​n x biết:

a) (2x+13)-127=0 ; b) ( 14-3x)+96+x)=0

Answer 1

Bài 4 :

a, ( 2x + 13 ) - 127 = 0

2x + 13 = 127

2x = 140

x = 70

b, ( 14 - 3x ) + 96 + x = 0

14 - 3x + 96 + x = 0

- 2x + 110 = 0

-2x = -110

x = 55

Answer 2

a) ( 2x+13)-127=0

2x+13=127

2x=114

x=57

Vậy x=57

b) (14-3x)+96+x=0

110-2x=0

2x=110

x=55

Vậy x=55