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GCD & LCMhard
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The equation 15x+10y=515x + 10y = 515x+10y=5 has the general solution x=1+2tx = 1 + 2tx=1+2t, y=−1−3ty = -1 - 3ty=−1−3t for all integers ttt. For which value of ttt is y=8y = 8y=8?