Okay, so we're supposed to find out how to SIMPLIFY it, and I left my notes @ school, and none of my friends have them 2.
Problem:
-4(5c + 7) - 3c + 13 = ?
2006-10-04 12:53:58 · 7 answers · asked by Miki 1 in Education & Reference ➔ Homework Help
first u have to do the distributive property. -4(5c+7) becomes -20c-28. So now its 20c-28-3c+13=? then u use the associative property to put the c's together: 20c-3c-28+13. The simplify: 20c-3c=17c and -28+13=15. So 17c+15. If you have to solve for c (not sure if you do) subtract 15 from both sides to get 17c=-15. Then divide both sides by 17. But if you dont have to solve for c its just 17c+15. Hope that helped!
2006-10-04 13:01:04 · answer #1 · answered by 123456789 2 · 0⤊ 0⤋
to simplyfy these are the steps
question: -4(5c + 7) - 3c + 13 = ?
Step 1: -20c + -28 - 3c + 13
Step 2: -23c + -28 + 13
Step 3: -23c - 15
2006-10-04 20:04:49 · answer #2 · answered by commandknight 2 · 0⤊ 0⤋
-4(5c + 7) - 3c + 13
Distribute:
-20c - 28 -3c + 13
Combine like terms:
-23c - 15
2006-10-04 19:56:26 · answer #3 · answered by Pascal 7 · 1⤊ 0⤋
First, multiply the parentheses in the first term by -4 to get
-20c -28 -3c + 13.
Now combine like terms to get your final answer:
-23c-15.
2006-10-04 20:05:08 · answer #4 · answered by steiner1745 7 · 0⤊ 0⤋
-4(5c+7)
use distributive property so : -20c -28
then:
- 3c +13
-20c-28-3c+13
-23c-15
2006-10-04 19:57:40 · answer #5 · answered by puertofrican 3 · 1⤊ 0⤋
-4(5c + 7) - 3c + 13 = ?
-20c-28-3c+13
-23c-15
and further...
23c=15
c= 15/23
2006-10-04 20:05:07 · answer #6 · answered by deepak_k_rana 2 · 0⤊ 0⤋
ok. so u try and get rid of the parenthesis. so it'd be -4 times 5c + 7-3c+13
then u combine the like terms
then u solve it!
2006-10-04 20:02:13 · answer #7 · answered by hawaii_rox 1 · 0⤊ 0⤋