Respuesta :
a+(-1.2)=-5.5
a+(-1.2)-(-1.2)=-5.5-(-1.2)
a=-4.3
To verify substitute a=-4.3 into the equation.
a+(-1.2)=-5.5
-4.3+(-1.2)=-5.5
-5.5=-5.5
a+(-1.2)-(-1.2)=-5.5-(-1.2)
a=-4.3
To verify substitute a=-4.3 into the equation.
a+(-1.2)=-5.5
-4.3+(-1.2)=-5.5
-5.5=-5.5