Question

Please answer them fast

Answer 1

Answer:

AB=CD So if we take B AND D out we get AC=BD

Answer 2

Answer:

2 )3A+2B-4

3)PROOVED BELOW

Step-by-step explanation:

2)a+b-3+b+2a-1

3a+2b-4

3) AB=CD                           .... (given)....

AB+BC=AC                                 (segment add post)

BC+CD=BD

AB+BC=BC+CD                    ...(by substitution)...

CB+BC=BD

AC=BD                            (substitution proof)