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5 votes
16. Translate and solve the equation.

Seven less than twice a number is 15. Find the number.
A. O 12
B.11
C. 07
D. 22

User Takaomag
by
8.4k points

2 Answers

1 vote

Answer:

B. 11

Explanation:

2a - 7 = 15

2a = 15 + 7

2a = 22

a = 22/2

a = 11

Check:

2*11 - 7 = 15

22 - 7 = 15

User Ivan Ermolaev
by
8.3k points
4 votes

Answer:

B) 11

Explanation:

Let n = a number

2n - 7 = 15 Add 7 to both sides

2n - 7 + 7 = 15 + 7

2n = 22 Divide both sides by 2


(2n)/(2) =
(22)/(2)

n = 11

User Denixtry
by
8.3k points

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