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x in (-oo:+oo)
(1/2)*(x+7) = 22 // - 22
(1/2)*(x+7)-22 = 0
1/2*(x+7)-22 = 0
1/2*(x+7)-22 = 0
1/2*x-37/2 = 0
1/2*x-37/2 = 0
1/2*x-37/2 = 0 // + 37/2
1/2*x = 37/2 // : 1/2
x = 37/2/1/2
x = 37
x = 37
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