Question

5a+3a-2a-7a+3a======

Answer 1

=2a

Es sumar o restar
Suerte

Answer 2

$5a+3a-2a-7a+3a \\ \\ 5a+3a+3a=11a \\ \\ 11a-7a-2a \\ \\ -7a-2a=-9a \\ \\ 11a-9a=2a <=== Solucion\ final \\ \\ Espero\ que \ te \ sirva..!!!!$