7w-9=30-6w

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Solution for 7w-9=30-6w equation: 


w in (-oo:+oo)

7*w-9 = 30-(6*w) // - 30-(6*w)

7*w+6*w-30-9 = 0

13*w-39 = 0 // + 39

13*w = 39 // : 13

w = 39/13

w = 3

w = 3

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