Question Number 125661 by Mammadli last updated on 12/Dec/20
$$\boldsymbol{{a}}^{\boldsymbol{{x}}} \:=\:\boldsymbol{{b}}^{\boldsymbol{{y}}} \:=\:\boldsymbol{{c}}^{\boldsymbol{{z}}} \\ $$$$\boldsymbol{{x}}^{\boldsymbol{{a}}} \:+\:\boldsymbol{{y}}^{\boldsymbol{{b}}} \:+\:\boldsymbol{{z}}^{\boldsymbol{{c}}} \:=\:? \\ $$