X x 6,5 + 35,75 = 52
X = (52 - 35,75 ) : 6,5
X = 16,25 : 6,5
X = 2,5
x * 6.5 + 35.75 = 52
x * 6.5 = 52 - 35.75
x * 6.5 = 16.25
x = 16.25 / 6.5
x = 2.5
X x 6.5 + 35.75 = 52
X x 6.5 = 52 - 35.75
X x 6.5 = 16.25
X = 16.25 : 6.5
X = 2.5
X x 6.5 + 35.75 = 52
X = ( 52 - 35.75 ) : 6.5
X = 16.25 : 6.5
X = 2.5