warnene17
13.12.2019 •
Mathematics
Which system of equations has only one solution?
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Ответ:
The answer is the last option, D.
Step-by-step explanation:
A function with one solution can be added and have a variable and a constant leftover. The variables in the other three options cancel each other out, so none of them have one solution. The first and third equations have no solutions, and the second has infinitely many solutions. The fourth option has only one variable cancel out and still has a constant on the other side of the equation. The fourth option is correct.
Ответ:
The total bill is $6900 because 69 is a man which hair is multi colour