Answer:
Step-by-step explanation:
[tex]3x+5=20\qquad\text{subtract 5 from both sides}\\\\3x+5-5=20-5\\\\3x=15\qquad\text{divide both sides by 3}\\\\\dfrac{3x}{3}=\dfrac{15}{3}\\\\x=5[/tex]
x = 5.
3x +5 = 20
Subtract 5 from both sides:
3x + 5 - 5 = 20 - 5
3x = 15
Divide both sides by 3:
x = 15/3
