Question

dau funda ajutor please.Aflati numarul necunoscut a:5x3:2:3x5=15,urmatoarea a:4:8x9x2:6=3,ax6:3:2x4:8=2,ax4:5:4x8:4=4

Answer 1

a:5×3:2:3×5 = 15
a:5×3:2:3 = 15:5
a:5×3:2:3 = 3
a:5×3:2 = 3×3
a:5×3:2 = 9
a:5×3 = 9×2
a:5×3 = 18
a:5 = 18:3
a:5 = 6
a = 6×5
a = 30

a:4:8×9×2:6 = 3
a:4:8×9×2 = 3×6
a:4:8×9×2 = 18
a:4:8×9 = 18:2
a:4:8×9 = 9
a:4:8 = 9:9
a:4:8 = 1
a:4 = 1×8
a:4 = 8
a = 8×4
a = 32

a×6:3:2×4:8 = 2
a×6:3:2×4 = 2×8
a×6:3:2×4 = 16
a×6:3:2 = 16:4
a×6:3:2 = 4
a×6:3 = 4×2
a×6:3 = 8
a×6 = 8×3
a×6 = 24
a = 24:6
a = 4

a×4:5:4×8:4 = 4
a×4:5:4×8 = 4×4
a×4:5:4×8 = 16
a×4:5:4 = 16:8
a×4:5:4 = 2
a×4:5 = 2×4
a×4:5 = 8
a×4 = 8×5
a×4 = 40
a = 40:4
a = 10