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Subtract 19c from each side: 31 = 7c - 74

Add 74 to each side: 105 = 7c

Divide each side by 7: 15 = c

Check: Does 19 x 15 + 31 = 26 x 15 - 74?

ie 285 + 31 = 390 - 74?

ie 316 = 316? Yes, job done.

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โˆ™ 2010-05-18 11:01:19
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Q: 19c plus 31 equals 26c - 74?
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