Question

calcule as expressoes algebricas:3x+(3x-27)

Answer 1

3x+(3x-27)
3x+3x-27
 6x-27
6x=+27
x=27/6
 x=4,5

Answer 2

3x + ( 3x - 27 )

3x + 3x - 27

6x = 27

x = 27/6

x = 9/2

Forte abraço!