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(17.9*x-23.84)/6.5 = 12.49-(2.34*x) // - 12.49-(2.34*x)
(17.9*x-23.84)/6.5+2.34*x-12.49 = 0
(17.9*x-23.84)/6.5+(2.34*6.5*x)/6.5+(-12.49*6.5)/6.5 = 0
17.9*x+2.34*6.5*x-12.49*6.5-23.84 = 0
33.11*x-81.185-23.84 = 0
33.11*x-105.025 = 0
(33.11*x-105.025)/6.5 = 0
(33.11*x-105.025)/6.5 = 0 // * 6.5
33.11*x-105.025 = 0
33.11*x-105.025 = 0 // + 105.025
33.11*x = 105.025 // : 33.11
x = 105.025/33.11
x = 3.17200242
x = 3.17200242
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