(8-4x+2y)-(20+4x-4y)
-12-8x+6y or -8x+6y-12
If 3x-y=12, what is the value of 8x/2y?
Answer:
Step-by-step explanation:
-------------------------(equation 1)
Now,
---------(from equation 1)
Therefore, the value of
➭Doing it all using mental math
<h2 /><h2>
<u>Step 1:</u></h2>
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<u>Step 2:</u></h2>
<u>
</u>
Answer:
81
Step-by-step explanation:
9 × 3n= 3^7
9×3n= 2187
27n= 2187
n= 2187/27
= 81
Hence n= 81
The answer would be 18.2 gallons because they used up 5.8 gallons, they still have 12.4 gallons that they did not use and in order to get the original amount of gas they had before the trip, you would add up 12.4 and 5.8 to get the Original amount. Hope this helps.
