Answer:
<h3>

</h3>


Step-by-step explanation:
1. 
Move constant to right hand side and change its sign
⇒
Subtract 6 from 21
⇒
Divide both sides of the equation by 3
⇒
Calculate
⇒
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2. 
Swap the sides of the equation
⇒
Move constant to right hand side and change it's sign
⇒
Add the numbers
⇒
Divide both sides of the equation by 7
⇒
Calculate
⇒
---------------------------------------------------------
3. 
Swap the sides of the equation
⇒
Move constant to right hand side and change it's sign
⇒
Subtract 7 from 28
⇒
Hope I helped!
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Answer:
-15,-13,-11
n + (n+2) + (n+4) = -51
3n + 6 = -51
3n = -57
n = -19
-19,-17,-15
Step-by-step explanation:
Answer:
The answer is: The two shops never charge the same price for sundaes with the same number of scoops.
Step-by-step explanation:
Answer:
a = 1/2
Step-by-step explanation:
With interval notaion (a,b] means include b in the interval but not a so this could also be writen as a