Answer:
Here is what I found:
Step-by-step explanation:
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Answer is A. 18
Because n + 18 =2n
Answer:
10
Step-by-step explanation:
Answer:
x^2-4x+<u>4</u>=(<u>x-2</u>)^2
Step-by-step explanation:
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(2x-3y=-4)-2(x+3y=7)
2x-3y-2x-6y=-4-14
-9y=-18
y=2, making x+3y=7 become:
x+6=7
x=1
So the solution to the system of equations is the point (1,2)