Answer:
x = 10
Step-by-step explanation:

or, 10x + 8 = 4(2x + 7)
or, 10x + 8 = 8x + 28
or, 10x - 8x = 28 -8
or, 2x = 20
or, x = 20/2
or, x = 10
x = 10
Awnser is A 6+4 divided by [2+1]x3
3x is greater than or equal to -18. You would divide each side by 3 to get x alone. Then You will get what x stands for. (x= -6)
2.4/0.3=8
0.3x8=2.4
The scale factor is 8.