Zana thinks of a number. She multiplied it by 3, she adds another 3 and multiplies it by 3 again. Her answer is 90. What was her original number?
Answered Apr 20Maths
Emma GhanemResourceful tutor and who is ready to teach!6 students helped
Assume the starting number = x (3x + 3)3 = 90 3x + 3 = 30 X = 9
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