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2a + 3b = 13

a + b =7, 2a + 2b = 14

(2a + 3b) - (2a+2b) = b

13 - 14 = -1, so b = -1

a+(-1) = 7, a = 8

Check:

2(8) + 3(-1) = 16-3 =13

(8) + (-1) = 7

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Q: Two times a number plus three times another number equals 13the sum of two numbers is 7 what are the numbers?
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