Changing the Number of Labels

Here, lets say I have

begin{alignat}{4}
            &x_1+x_2+&x_3&leq 3,
            &2x_1 + &3x_3&leq 5.
end{alignat}

Since I already have an alignat earlier in the document, with three lines, it will label these (4) and (5). But since this is for a new question, (I’m typing an assignment), I want these to label as (1) and (2) instead. How do I manually change the labels?