Question Solve the equation x=9 Evaluate −21=21−91xSwap the sides of the equation 21−91x=−21Move the constant to the right-hand side and change its sign −91x=−21−21Subtract the numbers More Steps Evaluate −21−21Write all numerators above the common denominator 2−1−1Subtract the numbers 2−2Reduce the numbers 1−1Calculate −1 −91x=−1Change the signs on both sides of the equation 91x=1Multiply by the reciprocal 91x×9=1×9Multiply x=1×9Solution x=9 Show Solution Rewrite the equation x=9 Evaluate −21=21−91xMultiply both sides of the equation by LCD −9=9−2xRewrite the expression 9−2x=−9Move the constant to the right side −2x=−18Multiply both sides 2x=18Solution x=9 Show Solution Graph