X * X = 5.4
multiply X's
X^2 = 5.4
take square root of each side
X = 2.32379
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To find out what number multiplied by 18 equals 54, you can set up an equation: 18x = 54. To solve for x, divide both sides by 18: x = 54 / 18. Simplifying the division gives x = 3. Therefore, 18 times 3 equals 54.
66 x 9 = 54
27 x 2 = 54
54 x 2
18 x 3