Question

(?,3) is on the line y=2x+5.find the other half of the coordinate

Answer 1

Equation: y = 2x + 5

When y = 3, 

3 = 2x + 5
-5         -5 

-2  =  2x
÷2     ÷2

-1  = x 

x = -1 

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Answer : The coordinate is (-1, 3) 
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