SOLUTION: find the equation 3x+8y-7=0 find the missing coordinate of the ordered pair so that it is a solution. (?,5)

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Question 931291: find the equation 3x+8y-7=0 find the missing coordinate of the ordered pair so that it is a solution. (?,5)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

3x%2B8y-7=0
(?,5)=> we are looking for x and y=5
3x%2B8y-7=0...plug in y=5
3x%2B8%2A5-7=0
3x%2B40-7=0
3x%2B33=0
3x=-33
x=-33%2F3
x=-11
so, (?,5) is (-11,5)