Question Solve the equation r=1 Evaluate 8r−15=−7Move the constant to the right-hand side and change its sign 8r=−7+15Add the numbers 8r=8Divide both sides 88r=88Divide the numbers r=88Solution More Steps Evaluate 88Reduce the numbers 11Calculate 1 r=1 Show Solution Rewrite the equation x2+y2=1 Evaluate 8r−15=−7Rewrite the expression 8r=15−7Simplify the expression 8r=8Square both sides of the equation (8r)2=82Evaluate 64r2=82To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 64(x2+y2)=82Evaluate the power 64(x2+y2)=64Solution x2+y2=1 Show Solution Graph
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