SOLUTION: what are the missing coordinates of y+7x=4 (-1,?) and(3,?)

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Question 501169: what are the missing coordinates of y+7x=4 (-1,?) and(3,?)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

y%2B7x=4
(-1,?) ...given x=-1, find y
y%2B7%28-1%29=4
y-7=4
y=4%2B7
y=11
and(3,?) ...given x=3, find y
y%2B7%283%29=4
y%2B21=4
y=4-21
y=-17

(-1,11) and(3,-17)