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va rog sa ma ajutati cu ex [(20+4)÷6-4]×35+2×(5×15-2×3×5)=

Răspuns :

[(20+4):6-4]x35+2x(5x15-2x3x5)=
(24:6-4)x35+2x(75-30)=
(4-4)x35+2x45=
0x35+90=
0+90=90
((20+4)/6-4)*35+2*(5*15-2*3*5)=
(24/6-4)*35+2*(5*15-2*3*5)=
(4-4)*35+2*(5*15-2*3*5)=
0*35+2*(5*15-2*3*5)=
0*35+2*(75-2*3*5)=
0*35+2*(75-6*5)=
0*35+2*(75-30)=
0*35+2*45=
0+2*45=
0+90=
90