Question

Translate the word problem below into an equation men bove,

Lyle was a careful craftsman, but he wasn't very creative, For example, he only sold two types of
wooden benches stained and unstained. The unstained benches cost $20 each and the stained cost $32
each. If Lyle sold 21 benches last month (stained and unstained combined) and collected a total of $600,
how many unstained benches did he selle

Answer 1

lyle sold 6 unstained banches

Answer 2

Explanation:

u and s are the number or unstained and stained benches sold, respectively.

Lyle sold 21 benches for $600

u + s = 21

s = 21-u

20u + 32s = 600

20u + 32(21-u) = 600

-12u = -72

u = 6

Lyle sold 6 unstained benches.