Answer:
1) 18b - 3c - 10
2) [tex]1\frac{3}{4}[/tex]g + 7
3) 0.3y
4) -4n - 5
Step-by-step explanation:
1) 16b + 5c - 10 - 8c + 2b
like terms: 16b + 2b = 18b
like terms: 5c - 8c = -3c
like terms: -10
simplified: 18b - 3c - 10
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2) 1/2g + 2g - 3/4 g + 7
like terms: 1/2g + 2g - 3/4g
2 1/2 - 3/4
improper fraction > 5/2 > same denom > 10/4
10/4 - 3/4 = 7/4 > mixed number> 1 3/4g
like terms: +7
simplified: 1 3/4g + 7
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3) -0.9y + 4.4y - 3.2y
like terms: -0.9y + 4.4y - 3.2y
simplified: 0.3y
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4) 4 - 8n + 7n - 3n - 9
like terms: -8n + 7n - 3n = -4n
like terms: 4 - 9 = -5
simplified: -4n - 5
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