Answer
$28x+19$
Work Step by Step
Distribute 6 and 5, respectively, to obtain:
$=6\cdot 3x + 6\cdot 4 + 5\cdot 2x + 5\cdot (-1)
\\=18x + 24 + 10x +(-5)
\\=18x+24+10x-5$
Combine like terms to obtain:
$=(18x+10x)+(24-5)
\\=(18+10)x + 19
\\=28x+19$