Question Solve the equation r=−4 Evaluate 7r=−28Divide both sides 77r=7−28Divide the numbers r=7−28Solution More Steps Evaluate 7−28Reduce the numbers 1−4Calculate −4 r=−4 Show Solution Rewrite the equation x2+y2=16 Evaluate 7r=−28Divide both sides of the equation by 7 r=−4Square both sides of the equation r2=(−4)2To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 x2+y2=(−4)2Solution x2+y2=16 Show Solution Graph
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