Question

(180:a-54):6=6,  45+(71-b*9)=80,  (x*6-956):4=70

Answer 1

$frac{frac{180}{a}-54}{6}=6\frac{frac{180-54a}{a}}{6}=6\frac{180-54a}{a}=36\180-54a=36a\180=90a\a=2$

 

$45+(71-b*9)=80\71-9b=35\36=9b\b=4$

 

$frac{x*6-956}{4}=70\x*6-956=280\6x=1236\x=206$