Question

efectueaza ce calculez prima data si a doua si asa mai departe punctul A

Answer 1

Prima data faci parantezele apoi inmultirea si impartirea apoi adunarea si scaderea:

3+3x[3+3:3x(3+3x3)]:15=
=3+3x[3+3:3x(3+9)]:15
=3+3x[3+3:3x12]:15
=3+3x[3+1x12]:15
=3+3x[3+12]:15
=3+3x15:15
=3+45:15
=3+3
=6