1/2(90-X)=25

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Solution for 1/2(90-X)=25 equation: 


X in (-oo:+oo)

(1/2)*(90-X) = 25 // - 25

(1/2)*(90-X)-25 = 0

1/2*(90-X)-25 = 0

1/2*(90-X)-25 = 0

20-1/2*X = 0

20-1/2*X = 0

20-1/2*X = 0 // - 20

-1/2*X = -20 // : -1/2

X = -20/(-1/2)

X = 40

X = 40

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