Solve for x_2, x_3, v_3, v_2
x_{2}=\frac{147v_{3}}{46}-\frac{147v_{2}}{46}+\frac{3125}{23}
x_{3}=\frac{539v_{3}}{92}-\frac{539v_{2}}{92}+\frac{4100}{23}
v_{3}\in \mathrm{R}
v_{2}\in \mathrm{R}
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