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blsea [12.9K]
3 years ago
12

4(x+7)-9 (x+6)-5+9 7a+21 5a+30

Mathematics
1 answer:
valentina_108 [34]3 years ago
4 0
35 but dubble check to be sure
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Find the solution(s) for x in the equation below. x2-25=0
AleksandrR [38]

Answer:

x=12.5

Step-by-step explanation:

2x-25=0

Move 25 to the right with addition so you get the 2x by itself:

2x=25

Now divide the 2 to the right to get the x by itself:

x=25/2, which is the same as x=12.5

5 0
3 years ago
Please help me idk this
marshall27 [118]

Answer:

x = 24

Step-by-step explanation:

The angles marked 5x and 120 are vertical angles.

Vertical angles are congruent. That means their measures are equal.

Set 5x equal to 120 and solve for x.

5x = 120

Divide both sides by 5.

5x/5 = 120/5

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Answer: x = 24

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4 years ago
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Hitman42 [59]
X = 16
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3 years ago
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If the sides of a square are lengthened by 7 feet, the area becomes 121 square feet. How long is a side of the original square?
Bogdan [553]
Square root of 121 is 11.
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A side of the original square is 4 feet.
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3 years ago
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