Please help with some simple algebra homework?

were reviewing old material and these are some of them i dont remeber how to do could you please help?


Evaluate


1. 3x+2(4x-5) when x=6


2. 2x^2+3x-4 (all over)/ 6 when x=3


3. 5(2x+3)-x when x=2





two step arithmetic problems:


For daniel's wedding the large room cost 450$ to rent and 15.95 per person for dinner how many people can attend the reception with a 2,795 is within her budget?





solve the fallowing


2/3x +4=16


4x-8=-24





evaluate expression


1. 2a^2-5ab+b^2-4(A+B) when A=-3 and B=2


2.MN+(m+2n)^2-3m-5n+8 if m=-4 and n=2





thanks if you can answer all of these its been like a year since ive done this and i have no clue how to do it anymore! the ';^'; means the number that fallows is the power and ';/'; is when it is a fraction.





thanks first person to answer gets 10 points unless there not correct then the next correct ones get itPlease help with some simple algebra homework?
Evaluate


1. 3x+2(4x-5) when x=6


2(6) +2 (4*6 -5)


12 + 8*6 -10


60-10


50





2. 2x^2+3x-4 (all over)/ 6 when x=3


I don't like doing exponents with typing. sorry. lol i need pen %26amp; paper





3. 5(2x+3)-x when x=2


5(2*2 +3) -2


10*2 +15 -2


20 +15 -2


33





For Daniel's wedding the large room cost 450$ to rent and 15.95 per person for dinner how many people can attend the reception with a 2,795 is within her budget?





[2795-450]/15.95


147 people





solve the following


2/3x +4=16


2/3x -4=20


[2/3x]/ 2/3 -4 = 20/ 0.66


x-4=30


x =34





4x-8=-24


4x= -24 +8


4x/4=-16/4


x=-4





Sorry, too lazy to do the last two :)Please help with some simple algebra homework?
Sub the number given in for x.


1. 380


2. 23/6


3. 33





two step arithmetic problem.


Subtract 450 from 2795 and divide that difference by 15.95. You should get 147 people.





Solve the following:


1. 18


2. -4





Evaluate: Sub in the numbers given, if you don't do that, your just lazy.


1. 24


2. 2
yes! i can help you :D





just simply substitute in the value for ';x'; into it's place then do PEMDAS (parentheses, exponents, multiply, divide, add, subtract) aka ORDER OF OPERATION.





1.) 76


2.) 3.83 (repeating decimal)


3.) 33


-----------------------


two step arithmetic: 174 people can attend.


i did 2797-$450 = 2345.


then did 2345/15.95 = about 174.


-----------------------


2/3x = 12


3/2*2/3x = 12*3/2 (you want to get ';x'; alone so do the opposite of what is affecting ';x';)


x = 18.


-----------------------


1.) 2(-3)^2-5(-3)(2)+(2)^2-(4)(-3+2) = 82


2.) (-4)(2)+(-4+2(2))^2-(3)(-4)-5(2)+8 = -116
1)---- 3(6)+2(4(6)-5)******** 2x^2 +3x - 4 /6 ****** 5(2(2)+3)-2 **** 4)-- 2/3x+4=16


18+2(24-5) ************ 2(3)^2+3(3)-4 /6 ******** 5(4+3)-2 ******* **** 2/3x=16-4


18+2(19) ************ 2(9)+9-4 /6 ******************* 5(7)-2 ******** 2/3x=12.3/2


18+38 *************** 18 + 5 /6 ********************** 35-2 ************* 2/3x=36


56 ***********************23/6 = 3.83 *************** 33 ************** x=18





5)---- 4x-8=24 ************ 6)--- 2(3)^2 - 5(3)(2) + (2)^2 - 4(3+2)


4x=24+8 **************** 18-30+4-20


4x=32 *********************** -28


x=8





7)----- (4)(2) +(4+2(2))^2 - 3(4) - 5(2) + 8


8+64-12-10+8


58