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Question
consider the following equation.
-3x + 3y + 15 = 0
step 2 of 3: plot the point on the line with the x - coordinate x = 3.
answer 2 points
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Step1: Substitute $x=3$ into equation
$-3(3) + 3y + 15 = 0$
Step2: Simplify the left-hand side
$-9 + 3y + 15 = 0 \implies 3y + 6 = 0$
Step3: Solve for $y$
$3y = -6 \implies y = \frac{-6}{3} = -2$
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The point to plot is $(3, -2)$