SOLUTION: 3(a+b), for a=2 and b=4. I do not understand any of this. I need help. Thank you!

SOLUTION: 3(a+b), for a=2 and b=4. I do not understand any of this. I need help. Thank you!

Algebra.Com

Question 357222: 3(a+b), for a=2 and b=4. I do not understand any of this. I need help. Thank you!
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The concept is called substitution. Replace a by 2 and b by 4. You will get
3(2+4) = 3*6 = 18.
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