Question

Resolva as seguintes equações :
Me AJUDEM POR FAVOR !!!

Answer 1

f) x/3 + 4 = 2x

x/3 + 4/3 = 2x/3

x + 12 = 6x
x - 6x = -12
- 5x = - 12 ( - 1 )
5x = 12
x = 12/5

g) x/2 + 4 = 1/3
x/6 + 4/6 = 1/6

3x + 24 = 2
3x = 2 - 24
3x = - 22
x = - 22/3

h) 5x/3 - 2/5 = 0

5x/15 - 2/15 = 0/15
25x - 6 = 0
25x = 0 + 6
25x = 6
x = 6/25


I) x - 1 = 5 - x/4
x/4 - 1/4 = 5/4 - x/4

4x - 4 = 20 - x
4x + x = 20 + 4
5x = 24
x= 24/5

j) x + x/2 = 15

x + x = 30
2x= 30
x = 30/2
x = 15