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Gaige
Mathematics
29 July, 03:36
Write a two column proof.
Given: 7y=8x-14; y=6
Prove: x=7
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Doodles
29 July, 03:39
0
7y = 8x - 14
7y = 7 (6) Reason : Given
7y = 42
8x - 14 = 42 Reason: Because 8x - 14 equals to 7y
8x = 42 + 14 Reason : Because we flip 14 on to the other side of the equation thus it becomes opposute of what it was.
8x = 56
* = 7
Proven
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Billie
29 July, 04:03
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Given - 7y=8x-14 : y=6
Substitution Property - 7 (6) = 8x-14
Distributive Property - 8x-14=42
Addition Property - 8x=56
Division Property - x=7
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» Write a two column proof. Given: 7y=8x-14; y=6 Prove: x=7
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