56000/2x - 20000/x =20

56000/2x - 20000/x =20


56000 / 2x - 20000 / x = about 20 times x
28000-20000=20x 56000÷2=28000
8000=20x
x=400



How to solve the equation 1.2x-1.00 (50-x) = 16


1.2x-1.00(50-x)=16
12x-10 (50-x) = 160 (multiply 10 on both sides)
12x-10 × 50 + 10x = 160 (without bracket)
22x-500 = 160 (merge similar items)
22x = 160 + 500 (merge similar items)
22x = 660 (merge similar items)
x=30