QuestionAugust 26, 2025

Point B is between A and C. AB=2x+3,BC=x+5 and AC=20 What is the value of x square What is the length of AB square

Point B is between A and C. AB=2x+3,BC=x+5 and AC=20 What is the value of x square What is the length of AB square
Point B is between A and C. AB=2x+3,BC=x+5 and AC=20
What is the value of x
square 
What is the length of AB
square

Solution
3.6(347 votes)

Answer

x = 4 ### AB = 11 Explanation 1. Set up the equation Since B is between A and C, AB + BC = AC. Substitute the given expressions: (2x + 3) + (x + 5) = 20. 2. Simplify the equation Combine like terms: 3x + 8 = 20. 3. Solve for x Subtract 8 from both sides: 3x = 12. Divide by 3: x = 4. 4. Calculate the length of AB Substitute x = 4 into AB = 2x + 3: AB = 2(4) + 3 = 11.

Explanation

1. Set up the equation<br /> Since B is between A and C, $AB + BC = AC$. Substitute the given expressions: $(2x + 3) + (x + 5) = 20$.<br />2. Simplify the equation<br /> Combine like terms: $3x + 8 = 20$.<br />3. Solve for x<br /> Subtract 8 from both sides: $3x = 12$. Divide by 3: $x = 4$.<br />4. Calculate the length of AB<br /> Substitute $x = 4$ into $AB = 2x + 3$: $AB = 2(4) + 3 = 11$.
Click to rate: