1/2w+5=7

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


w in (-oo:+oo)

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

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

1/2*w-2 = 0 // + 2

1/2*w = 2 // : 1/2

w = 2/1/2

w = 4

w = 4

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