X is the short piece
(3•x-1)+x=31
4x=31+1
X=32/4=8
Short piece is 8
Long piece is 3•8-1=23
Check 8+23=31 ✔️
Answer:
2x-10
Step-by-step explanation:
you have to distribute your parentheses to the 2
Answer:
B
Step-by-step explanation:
Please give brainiest :)