I need help writing the equations for 15 a, and c

Question

asked Apr 5, 2023 26.1k views

1 Answer

Kenny Evitt · Answer 1 · 2023-04-10T16:47:08+0000

Answer:

a) We can set the following equation:

Recall that:

$|x|=c\Leftrightarrow x=c\text{ or x=-c.}$

Therefore:

$x-2.5=0.5\text{ or x-2.5=-0.5}\Leftrightarrow\text{ x=3 or x=2.}$

c) We can set the following equation:

The solutions of the above equation are:

$x-45=9\text{ or x-45=-9 }\Leftrightarrow\text{ x=54 or x=36.}$