Question

23а-а=6.6 Скільки буде? Розпишіть

Answer 1

A(22a-1)=6,6 $\left \{ {{a=6.6} \atop {22a-1=6.6}} \right.$$\left \{ {{a=6.6} \atop {22a=7.6}} \right.$$\left \{ {a=6.6} \atop {a=0.3}} \right.$ В.: a=0.3