you need to isolate the variable so in order to do that you need to subtract 8 from both sides of the equation as so:
8 - x/10 - 8 = -11 - 8 simplify -x/10 = -19
isolate the variable -10/1 x -x/10 = -19 x -10/1 simplify
x = 190
Answer:
speed will be 1500/2 = 750km/h
or 208.33 m/s
Here's a rainbow of logic.
Step-by-step explanation:
- 5 + 5x = - 1 + 6x
- 5 + 5 + 5x = - 1 + 5 + 6x
5x = 4 + 6x
5x - 6x = 6x - 6x + 4
- x = 4
x = - 4
41
yellow marbles=5+ 3r(r is the number of red marbles)
red marbles=3r
3r+3r+5=77
6r=77-5
6r=72
r=72/6=12
yellow marbles = 5 + 3r
5+ 12 x 3
5+ 36
=41
