Respuesta :

5.4 = a - (-1.8)

two negatives = one positive

5.4 = a + 1.8

isolate the a

5.4 (-1.8) = a + 1.8 (-1.8)

a = 5.4 - 1.8

a = 3.6

hope this helps

Answer:

3.6

Step-by-step explanation: