## anonymous 4 years ago 13+4a=9 please show steps also

1. anonymous

Hi, you need to do the same procedure as in the last exercise.

2. anonymous

yes

3. anonymous

substract 13 from both sides of the equation, and then divide both sides of the equation by 4.

4. anonymous

but.. idk really how..

5. anonymous

look: $13+4a=9$

6. anonymous

$13-13+4a = 9-13$

7. anonymous

$4a=-4$

8. anonymous

$\frac{4a}{4}=\frac{-4}{4}$

9. anonymous

a = -1

10. anonymous

im starting to see this now

11. anonymous

i did.