find y and each side 7y+6 and 9y - 6
find K and each angle 9k and K + 40
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find y and each side 7y+6 and 9y - 6
find K and each angle 9k and K + 40
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3.
9y - 6 = 7y + 6
9y - 7y = 6 + 6
2y = 12
2y/2 = 12/2
y = 6
4.
9k = k + 40
9k - k = 40
8k = 40
8k/8 = 40/8
k = 5