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: $=(18x+10x)+(24-5) \\=(18+10)x + 19 \\=28x+19$
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