Posted by Olivia on Monday, October 19, 2009 at 7:07pm.
-5(-3n+4)-12=13
15n - 20 - 12 = 13
15n - 32 = 13
15n = 13 + 32
15n = 45
n = ?
-5(-3n+4)-12=13
Add 12 to both sides:
-5(-3n+4)=25
Divide across by 5:
3n - 4 = 5
Add 4 to both sides:
(you fill this in)
Finally, divide across by 3:
(you fill this in too!)
Related Questions
8th grade math - I need to know how to work this math problem: 3n + (-7) -5n +1
8th grade - -5+15n-20-12=13 Can somebody please help?
Algebra 1: 8th Grade - Simplify each expression. Write your answers using ...
Algebra - 1. -21=p-13 2. -8=14-p 3. -6-v-3 1/2 4. -7=-x 5. 10=n/5 6. n/12=-12 7...
8th grade prealgebra - Complete to show how the given expression can be written ...
science - Im 13 in the 8th grade and i need help on figurinmg out simularites ...
College Algebra - Can someone check my work for me again! I really appreicate it...
Algebra - Add. (8n6 - 6n - 5n4) + (2n4 + 2n6 + 3n) I think I have this answer ...
8th Grade Algebra - I need to know a quadratic equation that have: 1) exactly ...
Math - 40-3n=-23 what is n? 2/3-6h=-13/6 what is h? write as a equation,then ...
For Further Reading
