(1)) Painted Pots lets customers choose and paint their own pottery. The store has teapcts in multiple sizes. Rebecca chose to paint the largest teapot offered, which cost \( \$ 18 \) . She also painted \( 4 \) small teacups to go with her teapot. Rebecca spent a total of \( \$ 42 \) on pottery.
\( 18 c + 4 = 42 \)
\( 4 c + 18 = 42 \)
\( 4 ( c + 18 ) = 42 \)
\( 18 ( c + 4 ) = 42 \)
\( 5\)