Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, and solve to find the number.

Question

Mathematics

Larry Farrell

22 February, 22:13

Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, and solve to find the number.

+1

Answers (1)

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Krish Crosby · Answer 1

N = the number

0.5n - 9 = 4n + 5

(0.5n - 0.5n) - 9 = (4n - 0.5n) + 5

-9 = 3.5n + 5

(-9 - 5) = 3.5n + (5 - 5)

-14 = 3.5n

-14/3.5 = 3.5n/3.5

-4 = n

The number is - 4.