Question

(5,1 а + 1,38) -3,4 А

Answer 1

(5,1 а + 1,38) -3,4 а=5,1 а + 1,38-3,4 а=1.7а+1.38
1.7*0.6+1.38=1.02+1.38=2.4
1.7*1.8+1.38=3.06+1.38=4.44

44.2б-15.7б-23.45=28.5б-23.45
28.5*0.9-23.45=25.65-23.45=2.2
28.5*1.7-23.45=48.45-23.45=25