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130-(2*x) = 65-(X/3) // - 65-(X/3)
X/3-(2*x)-65+130 = 0
X/3-2*x-65+130 = 0
1/3*X-2*x+65 = 0 // - 1/3*X+65
-2*x = -(1/3*X+65) // : -2
x = (-(1/3*X+65))/(-2)
x = (1/3*X+65)/2
x = (1/3*X+65)/2
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