13 less than fourteen times a certain number is twenty-nine more than 7 times that number. What is the number? (I only need the answer) A. 12 B.6 C.7 D.9

Question

asked Oct 4, 2022 118k views

1 Answer

Kym · Answer 1 · 2022-10-08T17:52:45+0000

Answer: B. 6

Explanation:

Let x be the [certain number]

Rephrase the expression

13 less than fourteen times a certain number is twenty-nine more than 7 times that number

14x-13=7x+29

Calculate

Given

14x-13=7x+29

Add 13 on both sides

14x-13+13=7x+29+13

14x=7x+42

Subtract 7x on both sides

14x-7x=7x+42-7x

7x=42

Divide 7 on both sides

7x/7=42/7

x=6

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