Question

[(3+12-5):2-4+2].(4+2-1)= me ayudan porfas?

Answer 1

[(3+12-5):2-4+2].(4+2-1)

=(15−5:2−4+2)(4+2−1)

=(10:2−4+2)(4+2−1)

=(5−4+2)(4+2−1)

=(1+2)(4+2−

=3(4+2−1)

=3(6−1)

=(3)(5)

=15

a mi me enseñaron asi