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dem82 [27]
4 years ago
15

Which expression is equivalent to 2(a + 2b) - a - 2b? A. 3a + 2b B. 3a - 2b C. a - 2b D. a + 2b

Mathematics
2 answers:
Gekata [30.6K]4 years ago
8 0

Answer:

D. a + 2b

Step-by-step explanation:

2(a + 2b) - a - 2b

Expand brackets.

2a + 4b - a - 2b

Combine like terms.

2a - a + 4b - 2b

a + 2b

alex41 [277]4 years ago
6 0

Answer:

a +2b

Step-by-step explanation:

2(a + 2b) - a - 2b

Distribute

2a +4b -a -2b

Combine like terms

2a -a + 4b-2b

a +2b

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40 = -5 × \frac{n}{8}

First, simplify 5 × \frac{n}{8} to \frac{5n}{8} / Your problem should look like: 40 = -\frac{5n}{8}
Second, multiply both sides by 8. / Your problem should look like: 320 = -5n
Third, divide both sides by -5. / Your problem should look like: \frac{320}{-5} = n
Fourth, simplify \frac{320}{-5} to - \frac{320}{5} / Your problem should look like: -\frac{320}{5} = n
Fifth, simplify \frac{320}{5} to 64. / Your problem should look like: -64 = n
Sixth, switch sides. / Your problem should look like: n = -64

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7 0
3 years ago
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Romashka [77]
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Step-by-step explanation:

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