For an arithmetic sequence $\left\{ a _ { n } \right\}$ with common difference 2, $$a _ { 1 } + a _ { 5 } + a _ { 9 } = 45$$ Find the value of $a _ { 1 } + a _ { 10 }$. [3 points]
For an arithmetic sequence $\left\{ a _ { n } \right\}$ with common difference 2,
$$a _ { 1 } + a _ { 5 } + a _ { 9 } = 45$$
Find the value of $a _ { 1 } + a _ { 10 }$. [3 points]