if the x in the formula means multiply (next time please use * to denote multiplication) then:
7r-38
4y2 + 25y + 6
6+7a+6b
5x-6+3x+128x-6+128x+6
The simplified solution of 2/6 plus 1/6 plus 4/6 is 1 and 1/6.
15
It is: 4b+6
4y2 + 25y + 6
86
6+7a+6b
5a + 11
5x-6+3x+128x-6+128x+6
-12 + 6 - 10 - 6 +15 = -7
16
The simplified solution of 2/6 plus 1/6 plus 4/6 is 1 and 1/6.
15
-2 + 8 = 6
It is: 11x -2 simplified