3X=9 x=9/3 x=3
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Solve 3x = 33
5x-4
Use a variable to represent the unknown. 'Translate' the words to math symbols and write an equation to solve. Solve the equation. Check.
You need to call your number "x", then write the following two equations:(Equation 1) x = 0.727272... Multiplying by 100, you get: (Equation 2) 100x = 72.727272... If you subtract equation 1 from equation 2, and solve for "x", you will get the number as a fraction.
11 and 11. In general, you can write an equation (or two equations), and solve with the quadratic formula, to solve this type of questions.