4w-7+5w=1/2

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Solution for 4w-7+5w=1/2 equation: 


w in (-oo:+oo)

4*w+5*w-7 = 1/2 // - 1/2

4*w+5*w-(1/2)-7 = 0

4*w+5*w-1/2-7 = 0

9*w-15/2 = 0 // + 15/2

9*w = 15/2 // : 9

w = 15/2/9

w = 5/6

w = 5/6

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