2x -20 -1 =0
2x -21=0
2x=21
x= 10.5
Answer:
23.7 -2.5 X 8 = 23.7 - 20
= 3.7
So, since 100% = 128, x should equal 96, and we are trying to find x.
Multiply both sides of the equation by x.
(100/x) * x = (128/96) * x
Cancel out the x's on the left side so
100 = 1.333(x)
75 = x
96 is 75% of 128
