Answer:
1) x = 7
2) x = 4
3) x = 1/9
Step-by-step explanation:
1) 3x +6 = 27
-6 -6 Subtract 6 to both sides
3x = 21 Then divide both sides by 3
x = 7
2) 6x +3 = 27
-3 -3 Subtract 3 to both sides
6x = 24 Then divide both sides by 6
x = 4
3) 27x +3 = 6
-3 -3 Subtract 3 to both sides
27x = 3 Then divide both sides by 27
x = 3/27 Reduce
x = 1/9