Variance of sum of 2 random variables

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Suppose $X$ is a normally distributed variable with mean 0 and variance $k$. Let $Y$ be an independent random variable taking values $-1$ and $ +1$ with equal probabilities . Define $Z$ = $XY$+$X/Y$ Find variance of Z.

My take on this.

Z=$2X$ with probability $0.5$

=$-2X$ With probability $0.5$

And i was getting VAR(Z) =4$k$