4a-1/2=10 - solution

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Solution for 4a-1/2=10 equation:

a in (-oo:+oo)

4*a-(1/2) = 10 // - 10

4*a-(1/2)-10 = 0

4*a-1/2-10 = 0

4*a-21/2 = 0 // + 21/2

4*a = 21/2 // : 4

a = 21/2/4

a = 21/8

a = 21/8

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