Solve the system by elimination.\\ \begin{cases} -4x - 5y = 7\\ 5x + 4y = -2 \end{cases}\ One solution:\ No solution\ Infinite number of solutions
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Solve the system using the substitution method. For systems that do not have one unique solution, also state the number of solutions and whether the system is inconsistent or the equations are dependent. $$\begin{aligned}4 x+4 y &=5 \\x-4 y &=-\frac{5}{2}\end{aligned}$$
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