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Keith_Richards [23]
3 years ago
14

Sally Pays £25 for two tubes of paint a blue tube and a red tube. the blue tube cost £7 more than the red tube.

Mathematics
1 answer:
Lostsunrise [7]3 years ago
5 0
Let's say the price of the red tube is x, and the price of the blue tube is x + 7. Then the total cost 25 is the price of the red tube plus that of the blue tube, or x + x + 7.

2x+7=25  \\ 2x =18  \\ x=9

The red tube cost £9, and the blue tube cost <span>£16.</span>
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