Answer:
That would be 20.
Step-by-step explanation:
Hope this helps
B
I need 20 characters lol
Answer: 70.1
Step-by-step explanation:
Find Total weight at left side

Now
Per block weight at right side

Answer:
Hi there!
Your answer is:
x= 18
Step-by-step explanation:
3x+70=8x-20
Isolate x on left side
3x+70=8x-20
-8x -8x
-5x +70 = -20
Isolate whole numbers on right side
-5x +70 = -20
-70 -70
-5x = -90
Isolate x by dividing both sides by -5
-5x = -90
/-5
x= 18