Question Solve the equation r=3 Evaluate 16−3r=7Move the constant to the right-hand side and change its sign −3r=7−16Subtract the numbers −3r=−9Change the signs on both sides of the equation 3r=9Divide both sides 33r=39Divide the numbers r=39Solution More Steps Evaluate 39Reduce the numbers 13Calculate 3 r=3 Show Solution Rewrite the equation x2+y2=9 Evaluate 16−3r=7Rewrite the expression −3r=−16+7Simplify the expression −3r=−9Square both sides of the equation (−3r)2=(−9)2Evaluate 9r2=(−9)2To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 9(x2+y2)=(−9)2Evaluate the power 9(x2+y2)=81Solution x2+y2=9 Show Solution Graph
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