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pogonyaev
3 years ago
13

What is the value of x given that figure ADCB

Mathematics
2 answers:
aleksley [76]3 years ago
6 0

Answer:

Step-by-step explanation:

Because the trapezoid is isosceles, the two diagonals are congruent. This can be shown by ASA.

ACD = BDC          Properties of parallel lines.

DC = DC               A line is equal to itself

DBA = CAB           Property of parallel lines.

AC = DB                Parts of Congruent triangles are congruent

3x + 15 = 7x - 9     Add 9 to both sides

3x + 15 + 9 = 7x

3x + 24 = 7x          Subtract 3x from both sides.

24 = 7x - 3x

24 = 4x                  Divide by 4

24/4 = 4x/4

x = 6

Eduardwww [97]3 years ago
4 0

Answer: 6

Step-by-step explanation:

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17x - 6 + 3x - 5 = x + 11 + 4x
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Answer:

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Step-by-step explanation:

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Combine like terms on each side.

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x-\ number\\\\
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Solve 6[4x(72-63)divided3]
GREYUIT [131]
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The shoes were $175. They are now 10% off. How much are they now?
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