Rewrite each equation from the left column in standard form. As you fill in the blanks with coefficients and constants, remember to include the negative signs that will keep your standard form equation equivalent to its original from the left column.


(1) 2x+______y=______

(2) ______x+ ______y= -2

(3) 1/2x+ ______ y=______

(4) ______ x+ ______y=π(pi)