Solve this following
Question:

If $\overrightarrow{\mathrm{a}}=\mathrm{x} \hat{\mathrm{i}}+2 \hat{\mathrm{j}}-\mathrm{z} \hat{\mathrm{k}}$ and $\overrightarrow{\mathrm{b}}=3 \hat{\mathrm{i}}-\mathrm{y} \hat{\mathrm{j}}+\hat{\mathrm{k}}$ are two equal vectors the $x+y+z=?$

Solution:

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