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arlik [135]
3 years ago
14

Find valuable asked for witch ABCD must be a parallelogram, 1 11 2 15

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0

4x+7 = x+10   parallel sides have to be equal in a parallelogram

subtract x

3x +7 = 10

subtract 7 from each side

3x =3

divide by 3

x =1


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The given equation has been solved in the table.
Alina [70]

From the steps shown in the table given, we can conclude that: D. in solving the equation, the subtraction property of equality was not applied.

<h3>What is the Subtraction Property of Equality?</h3>

If a + b = c, to apply the subtraction property of equality so that b is moved to the other side of the equation, we would have:

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7 0
2 years ago
Please can someone help me?
Debora [2.8K]
If the perimeters are equal, you can form an equation to find x:
x + x + 12 + x + x + 12 = x + 11 + x + 11 + x + 16
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Now you can substitute the x value into the perimeter:
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(3 × 14) + 38
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So the perimeter would be 80 cm.
I hope this helps!
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