Posted by **Jim** on Saturday, August 4, 2007 at 12:25pm.

B is between A and C.

AB=4x+3

BC=3x-2

AC=57

What is the value of x?

Solve the relationship AB + BC = AC

Substitute the appropriate algebraic expressions for the line lengths.

The result will be the equation

7x + 1 = 57

Solve that.

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