help me out please! i really need it

Answer:
x=14
Step-by-step explanation:
to find x you have to isolate it so you divide 3 by both sides and that leaves you with the answer
3x = 42 <=> 3(14) = 42
The value of x is 14
Step-by-step explanation:
3x = 42
x = 42 ÷ 3
x = 14
The value of x is 14
Hope it helpful and useful :)