SOLUTION: Write a two-column proof. Given: 7y = 8x - 14; y = 6 Prove: x = 7

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Question 661442: Write a two-column proof.
Given: 7y = 8x - 14; y = 6
Prove: x = 7
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!


7y+=+8x+-+14 you know y+=+6, so:
7%2A6+=+8x+-+14 ; calculate 7%2A6
+42+=+8x+-+14 ; add 14 to both sides
56+=+8x ; divide both side by 8
7+=+x ; turn around the equation
x+=+7 .....proven