How do you do this? Please help

Step-by-step explanation:

To preface, your figure is going to be a line segment, with as your midpoint, in between points &

With that being said:

Identify your values:

Substitute the values into the first equation:

Combine like terms:

Subtract from both sides of the equation:

Divide by the coefficient of , which is :

Substitute for in segments & :

Solve:

Check your answers by substituting:

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yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled