Answer:
7x + 33 -I could be wrong I'm not an expert in maths jus trying to help
Step-by-step explanation:
x + 13 9x-7
so first you need to times both by two because there are two of both sums
2(x+13) so you times both numbers by 2 so
= 2x+26
and do the same with 9x - 7 so
2(9x-7) = 18x - 14
and then you add them together and find the like terms.
Like terms means for example in the equation:
2x + 3x - 4 + 3
the like terms are the two numbers that are the same like 2x and 3x are the same since they are both the same term and since there is a plus sign before the 3x you add them so 5x and then you need to do -4 + 3 = 7 and so the answer is 5x + 7.
In this case its:
2x + 26 + 5x + 7. So the like terms are 2x and +5x and +26 and +7.
So 2x + 5x = 7x and 26 + 7 = 33.
So the final equation is 7x + 33
Hope this helps :D
Answer:
d/a 4
Step-by-step explanation:
Answer:
taking away is subtracting so if you take away 10 from 67 the equation would be 67-10
the answer would be 57
X= child ticket
y= adult ticket
COST EQUATION:
$5.90x + $9.70y=$1352.20
QUANTITY EQUATION:
x+y=168
Step 1:
Solve for one variable in either equation and substitute it in the other equation
x+y=168
subtract y from both sided
x=168-y
Step 2:
substitute x=168-y in other equation
5.90x + 9.70y=1352.20
5.90(168-y) +9.70y=1352.20
multiply 5.90 by everything in parentheses
(5.90*168)+(5.90*-y) +9.70y=1352.20
991.20-5.90y+9.70y=1352.20
combine like terms
991.20+3.80y=1352.20
subtract 991.20 from both sides
3.80y=361
divide both sides by 3.80
y=95 adult tickets
There were 95 adult tickets sold.
Hope this helps! :)
Answer:
x=-16
Step-by-step explanation:
We are given with the equation
![40=-\frac{1}{3} \times (9x+30)+2](https://tex.z-dn.net/?f=40%3D-%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%20%289x%2B30%29%2B2%20)
We are asked to solve it for x.
Distributing
over bracket and simplifying
![40=-(\frac{9x}{3}+\frac{30}{3})+2](https://tex.z-dn.net/?f=40%3D-%28%5Cfrac%7B9x%7D%7B3%7D%2B%5Cfrac%7B30%7D%7B3%7D%29%2B2)
![40=-(3x+10)+2](https://tex.z-dn.net/?f=40%3D-%283x%2B10%29%2B2)
![40=-3x-10+2](https://tex.z-dn.net/?f=40%3D-3x-10%2B2)
![40=-3x-8](https://tex.z-dn.net/?f=40%3D-3x-8)
Adding 8 on both sides
![48=-3x](https://tex.z-dn.net/?f=48%3D-3x)
Dividing both sides by -3
![x=-16](https://tex.z-dn.net/?f=x%3D-16)