Question

determine o valor do x ,,,,,,,,,,,,,,a(6x+3):5=3 b (4-x) *6=12,,,,,,,,,c 7* (3x-2) d( 4x+2) :2=13

Answer 1

Determine o valor do x :
a) 6x+3 = 3  ==> 6x + 3 = 15       
       5 
6x = 15 - 3 ==> 6x = 12 ==> x = 2

b) (4-x) *6 = 12 ==> 24 - 6x = 12   
- 6x = 12-24 ==> -6x= -12(-1)    
6x = 12 ==> x = 2

c) 7* (3x-2) = 21x - 14

d) 4x+2 =13 ==> 4x+ 2 = 26         
        2
4x = 26-2 ==> 4x = 24 ==> x = 6