so I'm given the problem. if (x, 22) is a solution for the function (x) = 3x - 5, what is x?
okay so how do i do this. I'm completely lost. please help!
f(x) = 3x - 5
( x, y)
x is unknown here, but y is 22. y is the output of the function 3x - 5
so y = 3x - 5
Since we know y = 22.
Substitute to equation y = 3x - 5
22 = 3x - 5
22 + 5 = 3x
27 = 3x
3x / 3 = 27/3
x = 9
The solution is ( 9, 22) for the function y = 3x - 5.
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