10— : 1 —= 1 — :9746 — :3 —= 1 — :5231 — :1 —= 1 — :5843 — :1 —= 1 — :4229 — :3 —= 1 — :827 xxxxxx-—1x = 2755× 7- 5x = 9.9 5× 8- 1.6x = 44 —1 x+ 2 =2.3218— = 1 — x0.5
4 — : 4 — = 1 — : 3 5 2 9 — : 4 — = 1 — : 8 3 3 6 — : 1 — = 1 — : 7 8 6 2 — : 1 — = 1 — : 3 6 3 1 — : 1 — = 1 — : 8 4 6 x x x x x x- —1 x = 33 93× 6 - 8x = 9.5 6× 6 - 6.4x = 3.55 —1 x + 7 =7.5 27 — = 6.4 — x 0.9
1 — : 8 — = 1 — : 2 7 9 5 — : 6 — = 1 — : 6 7 7 1 — : 3 — = 1 — : 9 4 8 9 — : 2 — = 1 — : 8 3 2 1 — : 3 — = 1 — : 7 4 5 x x x x x x+ —1 x = 41.5 22× 9 - 0.4x = 0.7 7× 4 - 4x = 5.54 —1 x + 5 =5.9 314 — = 0.4 — x 0.8
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