Direct
No.
No. This is not true. It is false. The equation is an example of direct variation.
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
8x+2 = 6x-10 8x-6x = -2-10 2x = -12 x = -12/2 X= -6
Direct
There is only one equation that is given in the question and that equation is not a direct variation.
No.
-8x - 10 - 20 = -8x - 30
No. This is not true. It is false. The equation is an example of direct variation.
8x + -2 = 10 8x = 12 x = 1.5
7 - 8x = 17 7 - 8x - 7 = 17 - 7 -8x = 10 -8x/-8 = 10/-8 x = -10/8 = - 5/4
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
8x + 6 = 3x - 4 8x = 3x - 4 - 6 8x = 3x - 10 8x - 3x = -10 5x = -10 5x/5 = -10 x = -10/5 x = -2
8x+2 = 6x-10 8x-6x = -2-10 2x = -12 x = -12/2 X= -6
Yes. 8x - 11 = 69 so 8x = 80 or x = 10.
6x-20 = 8x 6x-8x = 20 -2x = 20 x = -10