7— : 11— = — :x1x+ — x = 48 8728 — :3 —= 1 — :7264 — :1 —= 1 — :5652 — :2 —= 1 — :3347 — :2 —= 1 — :834xxxx 8
5× 9- 2.5x
8× 7- 6.4x
3 —1 x- 42
15— = 8 — x0.2
= 2.5 = 4
=4.6
1 — : 1 1 — = — : x 1 x- — x = 25.5 6 2 2 1 — : 1 — = 1 — : 9 2 2 6 — : 1 — = 1 — : 5 6 3 7 — : 9 — = 1 — : 8 8 3 1 — : 7 — = 1 — : 5 8 5 x x x x 5
9× 9 - 6.4x
9× 4 - 3.2x
2 —1 x - 24
1 — = 1 — x 0.1
= 7.1 = 3
=2.4
2 — : 9 1 — = — : x 1 x+ — x = 7.5 3 8 6 1 — : 8 — = 1 — : 6 7 8 1 — : 1 — = 1 — : 8 9 8 1 — : 5 — = 1 — : 6 6 4 6 — : 1 — = 1 — : 5 2 3 x x x x 5
5× 8 - 3.2x
5× 4 - 0.4x
6 —1 x - 63
27 — = 3.2 — x 0.5
= 2.7 = 1
=6.1
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