-4(x-5)=2(2x+10)
-4x+20=4x+40
-20 -20
-4x=4x+20
-4x -4x
-8x=20
/-8 /-8
x= -2.5
Answer:
We need a picture
Step-by-step explanation:
Let the shortest side be x. Then the other two sides will be x+1 and x+2.
Perimeter = P = sum of the lengths of all three sides = x + (x+1) + (x+2)
This perimeter = 4x -1 (1 less than 4 times the shortest side).
Then x + x + 1 + x + 2 = 4x - 1
or: 3x + 3 = 4x -1 Subtr. 3x from both sides:
3 = x - 1
x=4, x+1=5, and x+2=6
The 3 sides have lengths 4, 5 and 6.