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Mariana [72]
3 years ago
10

Given a line segment that contains the points A,B, & C in order, and given that B is the midpoint of AC, if AB = 2x - 5, and

BC = x + 7, find x.
Mathematics
1 answer:
aleksley [76]3 years ago
4 0

Answer:

x=12

Step-by-step explanation:

Midpoint B of segment AC creates both equal segments AB and BC. The midpoint halves out AC therefore AB=BC

The equation would look like 2x-5=x+7 where you want to isolate x fully. First you want to add 5 on both sides of the equation so that you get 2x=x+12. Next subtract x from both sides of the equation to then get x=12.

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Answer:

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Step-by-step explanation:

Solve for x:

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Expand out terms of the left hand side:

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Subtract x from both sides:

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x - x = 0:

1.2 - 1.3 x = -1.4

Subtract 1.2` from both sides:

(1.2 - 1.2) - 1.3 x = -1.2 - 1.4

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x = (-2.6)/(-1.3)

(-2.6)/(-1.3) = 2.:

Answer:  x = 2.

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