The answer to your question would be the third option
Answer:
(-3,-1)
Step-by-step explanation:
6x-12y=-6
6x=12y-6
x=2y-1
9(2y-1)-6y= -21
18y-9-6y=-21
12y= -12
y=-1
6x-12(-1)=-6
6x+12= -6
6x=-18
x=-3
Answer:
![\boxed{ \bold{ \boxed{ \sf{8 {x}^{2} + 2x - 27}}}}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%5Cbold%7B%20%5Cboxed%7B%20%5Csf%7B8%20%7Bx%7D%5E%7B2%7D%20%20%2B%202x%20-%2027%7D%7D%7D%7D)
Step-by-step explanation:
![\sf{(4 {x}^{2} - 2x + 28) + (4 {x}^{2} + 4x - 55)}](https://tex.z-dn.net/?f=%20%5Csf%7B%284%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20%2B%2028%29%20%2B%20%284%20%7Bx%7D%5E%7B2%7D%20%20%2B%204x%20-%2055%29%7D)
When there is a ( + ) in front of an parentheses in an expression, there is no need to change the sign of each term in the expression. That means , the expression remains the same. Just, remove the unnecessary parentheses
![\dashrightarrow{ \sf{4 {x}^{2} - 2x + 28 + 4 {x}^{2} + 4x - 55}}](https://tex.z-dn.net/?f=%20%5Cdashrightarrow%7B%20%5Csf%7B4%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20%2B%2028%20%2B%204%20%7Bx%7D%5E%7B2%7D%20%20%2B%204x%20-%2055%7D%7D)
Collect like terms and simplify
![\dashrightarrow{ \sf{4 {x}^{2} + 4 {x}^{2} - 2x + 4x + 28 - 55}}](https://tex.z-dn.net/?f=%20%5Cdashrightarrow%7B%20%5Csf%7B4%20%7Bx%7D%5E%7B2%7D%20%20%2B%204%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20%2B%204x%20%2B%2028%20-%2055%7D%7D)
![\dashrightarrow{ \sf{8 {x}^{2} + 2x + 28 - 55}}](https://tex.z-dn.net/?f=%20%5Cdashrightarrow%7B%20%5Csf%7B8%20%7Bx%7D%5E%7B2%7D%20%20%2B%202x%20%2B%2028%20-%2055%7D%7D)
The negative and positive integers are always subtracted but possess the sign of the bigger integer.
![\dashrightarrow{ \sf{8 {x}^{2} + 2x - 27}}](https://tex.z-dn.net/?f=%20%5Cdashrightarrow%7B%20%5Csf%7B8%20%7Bx%7D%5E%7B2%7D%20%20%2B%202x%20-%2027%7D%7D)
Hope I helped!
Best regards! :D
In one day all the pets eat 9/4 cups of food. 9/4 ×8=72/4 72/4 simplified is 18. So in 8 days, all of the pets eat 18 cups of food!
Hope this helps
Answer:$30
Step-by-step explanation:8+12=20 and I would figure she had another one with a price inbetween the two so I chose 10 and added 20+10=30