Question

1-CALCULE O VALOR DE X

B-X/3+3x+18=90


como resolver me ajudem

Answer 1

x/3 + 3x + 18 = 90
MMC = 3
x/3/1+ 3x/1/3 + 18/1/3 = 90/1/3
x + 3x + 54 = 270
4x = 270 - 54
4x = 261
x = 216/4
x = 54