Reduced 1631

Three times the number reduced by 10 is as much as 100, as 100 is more than twice that. What is the number?

Correct answer:

x =  42

Step-by-step explanation:

(3x-10) -100 = 100 - 2x

(3·x-10) -100 = 100 - 2·x

5x = 210

x = 210/5 = 42

x = 42

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