## Algebra 1

$(12 + 2x)*2+(18 + 2x)*2 \leq 80$ $24 + 4x + 36 +4x \leq 80$ $60 + 8x \leq 80$ $60 + 8x - 60 \leq 80 - 60$ $8x \leq 20$ $8x/ 8 \leq 20/8$ $x \leq 2.5$ $(12 + 2(2.5) = 12 + 5 = 17$(18 + 2(2.5) = 18 + 5 = 23