Answer:
10 =x
Step-by-step explanation:
-90 = -100 + x
Add 100 to each side to isolate x
-90+100 = -100+100 + x
10 =x
I think it's C,But I'm not sure
<u>Answer:</u>
<h3>(

) x (

) </h3>
<u>Step-by-step explanation:</u>
To find the area of a rectangle, we have to multiply the length with the width.
In the question, the given length is 'x' and the width given is 'x +7'
So, the area would be
(
) x (
)
The area = 
So, the equation to find the area of such a rectangle would be:-
(
) x (
)