Answer:
$21.8
Step-by-step explanation:
20*.09=1.8
1.8+20=21.8
Instead of subtracting 6 from 12 then dividing they added 6 to 12 & ended up with 18. 18 by 2 is 9.
Answer:
true
Step-by-step explanation:
<u>ANSWER</u>
![x=-6y-\frac{21}{2}](https://tex.z-dn.net/?f=x%3D-6y-%5Cfrac%7B21%7D%7B2%7D%20)
<u>EXPLANATION</u>
We have
.
Expressing
in terms of
means we should rewrite the relation such that
will remain on one side of the equation while
and any other constant will be at the other side.
To make
the subject, we add
to both sides of the equation.
.
we now multiply the whole equation by the reciprocal of the coefficient of
, which is
.
This implies that;
![\frac{3}{2} \times \frac{2}{3} x=\frac{3}{2} \times (-4y)-\frac{3}{2} \times 7](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D%20%5Ctimes%20%5Cfrac%7B2%7D%7B3%7D%20x%3D%5Cfrac%7B3%7D%7B2%7D%20%5Ctimes%20%28-4y%29-%5Cfrac%7B3%7D%7B2%7D%20%5Ctimes%207)
This simplifies to;
![x=-6y-\frac{21}{2}](https://tex.z-dn.net/?f=x%3D-6y-%5Cfrac%7B21%7D%7B2%7D%20)