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Romashka [77]
2 years ago
5

if i was asked to think of a number and multiply it by 2, I could write this algebraically as 2x Write the following using x as

your unknown. "I think of a number, take away 1 and multiply the result by 3.​
Mathematics
2 answers:
kati45 [8]2 years ago
8 0

Step-by-step explanation:

(x - 1)×3

a random number minus 1, and the result is multiplied by 3.

bingo !

Dmitrij [34]2 years ago
5 0

Answer:

3(x - 1).

Step-by-step explanation:

Taken away 1 is x - 1

Multiply this by 3 is 3(x - 1).

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Collection 1, no of marbles = 125

Collection 2, no of marbles =36 fewer = 125-36 =89

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Hence total marbles = 125+89+178

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