7+1/2x+5=15 - solution

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Solution for 7+1/2x+5=15 equation:

x in (-oo:+oo)

(1/2)*x+5+7 = 15 // - 15

(1/2)*x-15+5+7 = 0

1/2*x-3 = 0 // + 3

1/2*x = 3 // : 1/2

x = 3/1/2

x = 6

x = 6

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