Question

Resolva as equações :
a ) | 3 x |= 0 b) | 1 3|=0
| 2 4 | | x 9|

c) | 2x - 4|=38
| 8. 3|

Answer 1

a) D = 12 - 2x
12 - 2x = 0
2x = 12
x = 6

b) 9 - 3x = 0
3x = 9
x = 3

c) 6x + 32 = 38
6x = 6
x = 1