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Mathematics, 31.07.2019 04:00 kat9940

6x+8y=30 y=.5x a: 6, -.75 b: 3, 1.5 c: 1, 3 d: 6, 3 explain i don't understand substitution.

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6x+8y=30 y=.5x a: 6, -.75 b: 3, 1.5 c: 1, 3 d: 6, 3 explain i don't understand substitution....
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