Question

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Answer 1

Answer:

12a - 13b = 28

13a - 12b = 22

by using substitute method

a = 28 + 13b in eq 2

13( 28 + 13b) =28

364 + 169b = 28

169b = -336

b = -336/169

now a = 28 + 13 (-336/169)

Step-by-step explanation:

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