А)3х+5х+96=1568
3*x+5*x+96 = 1568
96 + 8*x = 1568
8х=1472
x = 1472 / (8)
x = 184
б)357с-149с-1843=11469
357*c-149*c-1843 = 11469
-1843 + 208*c = 11469
208c=13312
c = 13312 / (208)
c = 64
в)2y+7y+78=1581
2*y+7*y+78 = 1581
78 + 9*y = 1581
9y=1503
y = 1503 / (9)
y = 167
г)256m-147m-1871=63747
256*m-147*m-1871 = 63747
-1871 + 109*m = 63747
109m=65618
m = 65618 / (109)
m = 602