3+x+2x=15/4 - solution

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Solution for 3+x+2x=15/4 equation:

x in (-oo:+oo)

x+2*x+3 = 15/4 // - 15/4

x+2*x-(15/4)+3 = 0

x+2*x-15/4+3 = 0

3*x-3/4 = 0 // + 3/4

3*x = 3/4 // : 3

x = 3/4/3

x = 1/4

x = 1/4

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