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emmasim [6.3K]
3 years ago
14

Three times a number added to seven is 22

Mathematics
1 answer:
FrozenT [24]3 years ago
5 0

3x+7=22

3x=15

x=5

 the number is 5

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Find the m of
zzz [600]

          Both of these problems will be solved in a similar way, but with different numbers. First, we set up an equation with the values given. Then, we solve. Lastly, we plug into the original expressions to solve for the angles.

[23] ABD = 42°, DBC = 35°

(4x - 2) + (3x + 2) = 77°

4x+ 3x + 2 - 2  = 77°

4x+ 3x= 77°

7x= 77°

x= 11°

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ABD = (4x - 2) = (4(11°) - 2) = 44° - 2 = 42°

DBC = (3x + 2) = (3(11°) + 2) = 33° + 2 = 35°

[24] ABD = 62°, DBC = 78°

(4x - 8) + (4x + 8) = 140°

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4x + 4x = 140°

8x = 140°

8x = 140°

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ABD = (4x - 8) = (4(17.5°) - 8) = 70° - 8° = 62°

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1 year ago
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1.530 divided by 10 is your answer
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3 years ago
Read 2 more answers
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