2x + 4x - 21 = 0
6x - 21 = 0
6x = 21
x=3.5
Hello!
You find the area of a rectangle by the equation A = lw
A is area
l is length
w is width
Put in the values you know
180 = 3x * 6
Now you solve it algebraically
Divide both sides by 6
30 = 3x
Divide both sides by 3
10 = x
The answer is 10in
Hope this helps!
28.23 is the volume of something if the diameter is 2 cm and the height is 9 cm.
