25.6k views
5 votes
4(1.5c+6)-2c=-9 I need a help my teacher doesn't help

User Evangelist
by
8.1k points

2 Answers

2 votes
Ok 4(1.5c + 6) - 2c = -9 First u do distributive property, and if u put arrows pointing from the number outside the parenthesis to each of the numbers inside u remember easier according to my math teacher. So 4 times 1.5c is 6c then 4 times 6 is 24 Now the problem is written: 6c + 24 - 2c = -9 Now u add/subtract like terms so 6c - 2c is 4c So 4c + 24 = -9 Subtract 24 from both sides: 4c = -33 And now u just have to dived both sides by 4 to isolate the c And remember a negative times a positive is a negative (my math teacher taught us: bad things that happen to good people is a bad thing, to remember it) So the answer is: C = -8.25 Now that it is corrected, I hope that helps :)
User Michael McGuire
by
8.0k points
6 votes
4(1.5c+6)-2c=-9 so we distribute the 4 to 1.5 tand 6 and it will now be broken into this ==>   6c+24-2c=-9 ok now we most combine like terms so the we do 6c-2c= 4c so the problem is now 24-4c=-9 ok now i think we need to solve for c so we subtract 24 to -9  because it is negative it is now -33 so the problem is -4c=-33 divide by -4 and you will get your answer. I hope this helped and is correct.
User Lars Truijens
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.