Solve for x given the equations $$x + 3 = y - 1$$ and $$y=2x$

Flashcard 24 - Math Flashcard Set for the TEAS

\[x = 4\]

\[x + 3 = y - 1\]

Substitute $2x$ for $y$ in the first equation.

\[x+3=2x-1\] \[x=4\]

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