Answer:
x=7
Step-by-step explanation:
You multiply the 2 with what is inside of the parenthesis so 3x-12
x+3x-12=16
then you add x +3x =4x
4x-12=16
then you add 12 to both sides
4x=28
then you divide by 4 on both sides
its a
Answer: 40 PLEASE MARK BRAINLEST
x<29
divide both sides by -1 since x cannot be negative
Answer: 20 Decibels
I don't know
seeed
Step-by-step] explanation:
ddd~!`