Respuesta :

Answer:

1 Remove parentheses.

2.5-3.75+5.42.5−3.75+5.4

2 Simplify  2.5-3.752.5−3.75  to  -1.25−1.25.

-1.25+5.4−1.25+5.4

3 Simplify.

4.154.15

Step-by-step explanation: