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## *_Artist_* 4 years ago 16 = 1/2*4 (3+ b2)

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1. *_Artist_*

$16 = half * 4* (3 + b _{2})$

2. shadowfiend

Are you trying to solve for $$b_2$$?

3. *_Artist_*

yes.

4. shadowfiend

Ok, so let's start at the top. When you have a multiplication between regular numbers, go ahead and do that first. In this case: $16 = \frac{1}{2}4(3 + b_2)$ You can do the multiplication of 1/2 * 4. What do you get?

5. *_Artist_*

2?

6. shadowfiend

Right. So then we have: $16 = 2(3 + b_2)$

7. shadowfiend

Now the easiest thing now is to move that 2 over to the left. Can you do that?

8. *_Artist_*

yes....16 -2 = 14

9. shadowfiend

Not quite. 2 is multiplied on the right, so you have to divide, not subtract, to get it back.

10. shadowfiend

Or, to move it over, rather.

11. *_Artist_*

yes.... duh..I realized that shortly after posting...

12. *_Artist_*

so 16/2 is 8 right?

13. shadowfiend

Right. So now we have: $8 = 3 + b_2$

14. *_Artist_*

divide 8 by 3 now?

15. shadowfiend

No, 3 is added in, so we subtract it this time :)

16. shadowfiend

Remember, we can also rewrite that: $8 = b_2 - 3$

17. shadowfiend

!! Sorry, I meant: $8 = b_2 + 3$

18. *_Artist_*

okay...so $b _{2}$ =5?

19. shadowfiend

Right! (Sorry for the delay.)

20. *_Artist_*

no biggie

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