8x = 36 + 18y ⇒ -2(8x = 36 + 18y) ⇒ -16x = -72 - 36y
9x = 28 + 4y ⇒ 9(9x = 28 + 4y) ⇒ 81x = 252 + 36y
65x = 180
x =
9x = 28 + 4y
9 = 28 + 4y
9(36) = 13(28 + 4y)
324 = 364 + 52y
-40 = 52y
Answer: x = , y =
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