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Alla [95]
3 years ago
14

Which is a solution to 2x + 1 = 21?

Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0

Answer:

x = 10 is your answer

- Explain -

Step 1: subtract 1 from both sides (subtraction of equality)

which will give us:

2x = 21 - 1

which equals to

2x = 20

Step 2: Divide both sides by 2

which is

2x/2 = 20/2

2/2 = 1 and 20/2 = 10

Therefore the answer is x = 10

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PLZ HELP!! 20 points!
kolbaska11 [484]
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Let's plug it into the first equation first:

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3 0
3 years ago
]solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument? the circumf
Anna35 [415]

Answer:

\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}} best completes this argument

Step-by-step explanation:

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