Question

Three times a number increased by ten is equal to twenty less than six times the number, find the number. Let the number be x. ​

Answer 1

$answer.... \\ \\ 3x + 10 = 6x - 20 \\ 3x - 6x = - 20 - 10 \\ \\ - 3x = - 30 \\ x = \frac{ - 30}{ - 3} \\ x = 10$

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Answer 2

Let the number be x .

Three times a number = 3x

Six times a number = 6x

Therefore , 3x + 10 = 6x - 20

10 + 20 = 6x - 3x

30 = 3x

x = 30/3

x = 10

Therefore , 3 × 10 + 10 = 6 × 10 - 20

40 = 40

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