-7-4x+1/2x=-91/2

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Solution for -7-4x+1/2x=-91/2 equation: 


x in (-oo:+oo)

(1/2)*x-(4*x)-7 = -91/2 // + -91/2

(1/2)*x-(4*x)-(-91/2)-7 = 0

(1/2)*x-4*x+91/2-7 = 0

77/2-7/2*x = 0 // - 77/2

-7/2*x = -77/2 // : -7/2

x = -77/2/(-7/2)

x = 11

x = 11

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