3x+1+1/2x+3=18 - solution

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Solution for 3x+1+1/2x+3=18 equation:

x in (-oo:+oo)

3*x+(1/2)*x+1+3 = 18 // - 18

3*x+(1/2)*x-18+1+3 = 0

7/2*x-14 = 0 // + 14

7/2*x = 14 // : 7/2

x = 14/7/2

x = 4

x = 4

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