7b/2=4.2 - solution

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Solution for 7b/2=4.2 equation:

b in (-oo:+oo)

(7*b)/2 = 4.2 // - 4.2

(7*b)/2-4.2 = 0

7/2*b-4.2 = 0 // + 4.2

7/2*b = 4.2 // : 7/2

b = 4.2/7/2

b = 1.2

b = 1.2

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