1/3x+1/3(2x-15)=31/2

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Solution for 1/3x+1/3(2x-15)=31/2 equation: 


x in (-oo:+oo)

(1/3)*(2*x-15)+(1/3)*x = 31/2 // - 31/2

(1/3)*(2*x-15)+(1/3)*x-(31/2) = 0

(1/3)*(2*x-15)+(1/3)*x-31/2 = 0

1/3*(2*x-15)+x/3-31/2 = 0

(1/3*2*3*(2*x-15))/(2*3)+(2*x)/(2*3)+(-31*3)/(2*3) = 0

1/3*2*3*(2*x-15)+2*x-31*3 = 0

6*x-93-30 = 0

6*x-123 = 0

(6*x-123)/(2*3) = 0

(6*x-123)/(2*3) = 0 // * 2*3

6*x-123 = 0

6*x-123 = 0 // + 123

6*x = 123 // : 6

x = 123/6

x = 41/2

x = 41/2

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