4 years ago

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

he number.

1 answer:

3 0

$x-\ number\\\\
\frac{1}{2}x-9=4x+5\ \ \ | multiply\ by\ 2\\\\
x-18=8x+10\ \ \ | add\ 18\\\\
x=8x+28\ \ \ | subtract\ 8x\\\\
-7x=28\ \ \ | divide\ by\ -7\\\\
x=-4\\\\Searched\ number\ is\ -4.$

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