40-2A/4=4

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Solution for 40-2A/4=4 equation: 


A in (-oo:+oo)

40-((2*A)/4) = 4 // - 4

40-((2*A)/4)-4 = 0

(-1/2)*A-4+40 = 0

36-1/2*A = 0 // - 36

-1/2*A = -36 // : -1/2

A = -36/(-1/2)

A = 72

A = 72

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