SOLUTION: in the equation 3x+7y=21 at what point is the x-axis intersected

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Question 594642: in the equation 3x+7y=21 at what point is the x-axis intersected
Answer by mamiya(56) About Me  (Show Source):
You can put this solution on YOUR website!
The X-axis intersected when y=0.
y=0 --> 3x+7(0)=21
--> 3x = 21
--> 3x/3 = 21/3
so, x=7
so that point is (7, 0)