Question

Q.19 - Please Help, I will give Brainliest!!!!

Answer 1

Firstly, you need to multiply out the parentheses:
2(x-3) becomes 2x-6, as you are multiplying both x and -3 by 2
Using that, you just collect like terms:
2x-6+4x=18
6x-6=18
6x=24
then divide by 6 on both sides to isolate x:
x=4

Answer 2

6x -6=18
+6      +6
6x=24
x=4