a)7,02:(y+1,2)=1?2
b)(z+3,5)*5,1=36,72
c)2,7L+3,6L-1,2L=36,4

a) y+1.2=7.02:1.2  y+1.2=5.85  y=5.85-1.2  y=4.65b) 5.1z+17.85=36.72   5.1z=36.72-17.85  5.1z=18.87  z=18.87:5.1  z=3.7c) 5.1L=36.4   L=36.4:5.1   L=7.14