X - (2 / 7 + 3 / 7) = 4 / 7 + X + 1 / 2 = 15 / 8, 4 / 5 - x + 1 / 3 = 5 / 6

X - (2 / 7 + 3 / 7) = 4 / 7 + X + 1 / 2 = 15 / 8, 4 / 5 - x + 1 / 3 = 5 / 6

X - (2 / 7 + 3 / 7) = 4
x-5/7=4
x=4-5/7
x=23/7
Seven tenths + X + Half = fifteen eighths
x=15/8-7/10-1/2
x=75/40-28/40-20/40
x=27/40
Four fifths - x + one third = five sixths
x=4/5+1/3-5/6
x=24/30+10/30-25/30
x=9/30
x=3/10