Okay. Basically, a is greater than or equal to 9.
First, you do distribute the 2.
8a+2-10a(< or =)20
Subtract two on both sides.
8a-10a(< or =)18
Then subtract 10a from 8a
-2a(< or =)18
Divide by two on both sides
and switch around the greater than sign since you divided by a <span>-2
</span>a(> or =)-9
<span>And if you check, -9 works, -8 works, and -10 doesn't work.</span>
Explanation is in the file
tinyurl.com/wtjfavyw
<span>In mathematics, the </span>absolute value<span> <span>or modulus. | x. | of a real number x is the
non-negative </span></span>value<span> of x
without regard to its sign. So both shawn and brielle are correct since
both function will have the same answer, because it will just cancel out the
sign.</span>
