Which related equation can be used to solve the equation?

m + 5 = - 7.3

A. m = - 7.3 - 5

B. m = 5 - 7.3

C.

m = 7.3 - 5

M+5=-7.3

m needs to be lone

move 5 to the other side of = sign dont forget to change sign

m=-7.3-5

no when two signs are the same we add

so its like saying

m=-7.3 + (-5)

m=-12.3 now lets check it

-12.3 = + 5=-7.3

-12.3=-5 + (-7.3)

-12.3=-12.3 so we did it right

so your answer would be m=-7.3-5

It's A. m = - 7.3 - 5.

You can always check it ...

-7.3 - 5 = - 12.3

-12.3 + 5 = - 7.3