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Just move over the two. When you change to standard form you want the x and y together and the constant by itself.
7x-4y+2=0
7x-4y+2-2=0-2
7x-4y=-2
Standard form: 7x-4y=-2
The equation would be 20-m=n
Say you drank 10 ounces, and plug it into the equation:
20-10=n
10=n
Answer:
9
Step-by-step explanation: