y-choose-a-variable-translate-words-to-symbols-and-isolate-the-variable-to-solve

Question

Three times a number is 81. Use this phrase to write an equation and also solve for the unknown variable.

Accepted Answer

3x = 81; x = 27

Answer

3 - x = 81; x = -78

Answer

x/3 = 81; x = 243

Answer

x + 3 = 81; x = 78