35x = 10 - 40y
-24y - 21x + 6 = 0
You asked:
Solve the system of equations:\[\begin{aligned}35 x &= 10 - 40 y\\-\left( 24 y \right) - 21 x + 6 &= 0\end{aligned}\]
MathBot Answer:
The system of equations has infinitely many solutions.
$$\begin{aligned}x &= \frac{2}{7} - \frac{8 y}{7}\end{aligned}$$
\(y\) is a free variable.