3x*5x-2=4-2x*1
15x-2=4-2x
13x=2
x=6.5
200. because 50 = one hour. 100= 2 hours and so on.
A = LW
3,003.04 = 16L
3,003.04 / 16 = L
187.69 = L
so the painting can be 187.69 cm in length
X=2
its x=2 because you have to divide -20x by -40 so the two negatives cancel out each other and then you get 2.