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x in (-oo:+oo)
(-1/4)*(x+2) = -4 // + 4
(-1/4)*(x+2)+4 = 0
4-1/4*(x+2) = 0
4-1/4*(x+2) = 0
7/2-1/4*x = 0
7/2-1/4*x = 0
7/2-1/4*x = 0 // - 7/2
-1/4*x = -7/2 // : -1/4
x = -7/2/(-1/4)
x = 14
x = 14
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