In the equation ( 81 = 3a - 8a - 4a ), the variable ( a ) represents an unknown quantity that we need to solve for. To simplify the right side, we combine the terms: ( 3a - 8a - 4a = -9a ). This gives us the equation ( 81 = -9a ). Solving for ( a ) involves dividing both sides by -9, resulting in ( a = -9 ).
92 = 81
81% = 81/100
81 x 81 = 6561
How about: 9 times 9 = 81 or 81 times 1 = 81
100x2-81
81 * 22 = 1,782
729/81 = 9
3 to the power of 4 = 81
It is: 9^2 = 81
81 times 7 or 7 times 81 equals 567
81 x 58 = 4698
77.0247