Algebra 1
posted by slomo
Solve each system graphically. Be sure to check your solution.
If a system has an infinite number of solutions, use setbuilder notation to write the solution set.If a system has no solution, state this. I tried this and found no solution, is this right?
x + y = 9
x  y = 1

Henry
x + y = 9
x  y = 1
Sum: 2x + 0 = 10
X = 5
In Eq1, replace x with 5:
5 + y = 9
Y = 4
Solution set: (x,y) = (5,4).
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