What is the justification for the step taken from line 2 to line 3?
3x+9-7x=x+10+x
-4x+9= 2x+10
-6x+9 = 10
6x=1
x=1
the subtraction property of equality
the multiplication property of equality
combining like terms on one side of the equation
the distributive property

Which function has the smallest y-intercept value

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

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