Elena began to solve this equation:
12x + 6(4x + 3) = 6(6x + 4) - 6
12x + 24x + 18 = 36x + 24...
Mathematics, 15.01.2021 17:00 eggoysters
Elena began to solve this equation:
12x + 6(4x + 3) = 6(6x + 4) - 6
12x + 24x + 18 = 36x + 24 - 6
When she got to the last line she stopped and said the equation is true for all values of x. How could Elena tell without finishing?
Answers: 2
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