3x+6y=-3
u
4x -6y=10
You asked:
Solve the system of equations:\[\begin{aligned}3 x + 6 y &= -\left( 3 u \right)\\4 x - 6 y &= 10\end{aligned}\]
MathBot Answer:
The system of equations has infinitely many solutions.
$$\begin{aligned}u &= - \frac{7 y}{2} - \frac{5}{2}\\x &= \frac{3 y}{2} + \frac{5}{2}\end{aligned}$$
\(y\) is a free variable.