Here is a system of equations.
y=x+3
y=-x-5
graph the system. then write its solution. note that you can also answer "no solution" or "infinitely many" solutions.
x
5
?
solution:
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Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take