Suppose that $x+y=2$ and $2 x+y=6$. What is $x$ ?
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Answer

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Answer

Final Answer: $\boxed{4}$

Steps

Step 1 ：We have a system of two linear equations: $x + y = 2$ and $2x + y = 6$.

Step 2 ：We can solve this system by elimination. Subtract the second equation from the first to eliminate $y$ and solve for $x$.

Step 3 ：The solution to the system of equations is $x=4$.

Step 4 ：Final Answer: $\boxed{4}$