7w+9=23

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Solution for 7w+9=23 equation: 


w in (-oo:+oo)

7*w+9 = 23 // - 23

7*w-23+9 = 0

7*w-14 = 0 // + 14

7*w = 14 // : 7

w = 14/7

w = 2

w = 2

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