Question Solve the equation r=10 Evaluate 2(r−1)=18Divide both sides 22(r−1)=218Divide the numbers r−1=218Divide the numbers More Steps Evaluate 218Reduce the numbers 19Calculate 9 r−1=9Move the constant to the right side r=9+1Solution r=10 Show Solution Rewrite the equation x2+y2=100 Evaluate 2(r−1)=18Simplify the expression 2r−2=18Rewrite the expression 2r=2+18Divide both sides of the equation by 2 r=10Square both sides of the equation r2=102To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 x2+y2=102Solution x2+y2=100 Show Solution Graph
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