Question

Va rog ajutați-mă dau coroana

Answer 1

●5. 72:a=3×3

72:a=9

a=72:9

a=8

●6. a) 25×(160-3×5)-8+(24+6:6)

=25×(160-15)-8+(24+1)

=25×155-8+25

=3875-8+25

=3895

b) 12×10:6-(200-20):9+36:4-2

=120:6-180:9+4-2

=20-20+4-2

=2

c) 4×4:8×[30(64:8:2-1)]-10

=16:8×(30×3)-10

=3×90-10

=200

d) 9+(9×9÷9-9)+220-20×0

=9+220

=229

●7. a:4+6:2=24

a:4+3=24

a:4=21

a=84

Sper ca te-am ajutat