The given equations are:1) 4x - 2x - 7 = 5Combining like terms: 2x - 7 = 5Adding 7 to both sides: 2x = 12Dividing by 2: x = 6
2) 2x + 9 = 178Subtracting 9 from both sides: 2x = 169Dividing by 2: x = 84.5
3) 6 - x = 5Subtracting 6 from both sides: -x = -1Multiplying by -1 to solve for x: x = 1
Therefore, the solution is x = 6, x = 84.5, x = 1.
The given equations are:
1) 4x - 2x - 7 = 5
Combining like terms: 2x - 7 = 5
Adding 7 to both sides: 2x = 12
Dividing by 2: x = 6
2) 2x + 9 = 178
Subtracting 9 from both sides: 2x = 169
Dividing by 2: x = 84.5
3) 6 - x = 5
Subtracting 6 from both sides: -x = -1
Multiplying by -1 to solve for x: x = 1
Therefore, the solution is x = 6, x = 84.5, x = 1.