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User Assylias
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1 Answer

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a) 5x - 8y = -13 (x3)
2x - 3y = -4 (x8)

15x - 24y = -39 -
16x - 24y = -32
-x / = -7
x = -7/-1
x=7

Solve 2x-3y=-4 by using x=7
2x - 3y = -4
2(7) - 3y = -4
14 - 3y = -4
-3y = -4 -14
-3y = -18
y = -18/-3
y = 6

Therefore x = 7 and y = 6
User Jakub Arnold
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