1 — :1 —= 1 — :6289 — :1 —= 1 — :8245 — :1 —= 1 — :6221 — :1 —= 1 — :3261 — :4 —= 1 — :238 xxxxxx-—1x = 1443× 7- 5x = 0.3 6× 7- 2.5x = 26 —1 x- 8 =8.8519— = 4 — x0.6
5 — : 1 — = 1 — : 6 9 4 6 — : 10 — = 1 — : 5 9 5 10 — : 3 — = 1 — : 9 4 5 10 — : 5 — = 1 — : 9 4 4 2 — : 1 — = 1 — : 3 5 6 x x x x x x- —1 x = 1 68× 7 - 8x = 1.9 7× 8 - 6.4x = 1.53 —1 x + 7 =7.5 23 — = 6.4 — x 0.1
1 — : 3 — = 1 — : 6 2 6 1 — : 1 — = 1 — : 6 9 6 7 — : 5 — = 1 — : 6 4 7 1 — : 2 — = 1 — : 5 3 4 7 — : 10 — = 1 — : 8 9 5 x x x x x x- —1 x = 1.5 83× 8 - 4x = 4.6 3× 5 - 6.4x = 32 —1 x + 4 =4.4 51 — = 5 — x 0.5
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