Math Problem Solver

$$x - 3 y + 7 = \left(-1\right) 3 y + \frac{2 y}{3} + 7$$

$$3 x - 2 y = 0$$Solve for $x$: $$x = \frac{2 y}{3}$$Substitute $x$ into the given expression: $$\begin{aligned}x - 3 y + 7 &= - 3 y + 7 + \frac{2 y}{3} \\ x - 3 y + 7 &= \left(-1\right) 3 y + \frac{2 y}{3} + 7\end{aligned}$$