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TEA [102]
3 years ago
11

If 2x + y = 12 and x + 2y = -6, then find the value of 2x + 2y

Mathematics
1 answer:
Sedaia [141]3 years ago
3 0
2x + y = 12
2x = 12 - y

x + 2y = -6
2y = -6 - x

2x + 2y
12 - y + (-6) - x
12 + (- 6) - y - x
12 - 6 - y - x
6 - y - x

Answer: - x - y + 6
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jessica gave the cashier $20 to pay for four pair of socks the cashier gave her $4.12 in change each pair of socks cost the same
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The cost price of each pair of socks is 3 dollars and 97 cents

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