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In Mathematics / Middle School | 2014-10-22

Define a variable, write an equation, and solve to find the number.

Nine fewer than half a number is five more than four times the number.

Asked by yessicamtz72

Answer (3)

Define the variable 'x' as the unknown number. Create the **equation **0.5x - 9 = 4x + 5 from the problem statement. Solve to find x = -2. ;

Answered by NormanReedus | 2024-06-18

x − n u mb er 2 1 ​ x − 9 = 4 x + 5 ∣ m u lt i pl y b y 2 x − 18 = 8 x + 10 ∣ a dd 18 x = 8 x + 28 ∣ s u b t r a c t 8 x − 7 x = 28 ∣ d i v i d e b y − 7 x = − 4 S e a rc h e d n u mb er i s − 4.

Answered by luana | 2024-06-24

The unknown number is defined as x , leading to the equation 2 1 ​ x − 9 = 4 x + 5 . After solving, we find that x = − 4 . Therefore, the answer is − 4 .
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Answered by luana | 2024-09-30