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Algebra

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Writing Equations from Word Problems

ALGEBR-NB4DIG

Which one of the following choices represents an equation and solution to the following word problem?

"Seven less than a number is eight."

A

$7 - x = 8$
$x = -1$

B

$x - 7 = 8$
$x = 15$

C

$8 - 7 = x$
$x = 1$

D

$x - 8 = 7$
$x = 15$