2 years ago

Tuse

1 answer:

7 0

Answer: x=4 and BC=20

STEPS:

Set the equation for AC and DF equal to each other then solve for x.

2x+7=5x-5

Eliminate the -5 by adding it to both sides.

2x+12=5x

Move the x to one side by subtracting 2x from both sides.

12=3x

Isolate the x by dividing both sides by 3

4=x

EF=5x which means BC=5x

5(4)= 20

So BC= 20

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