In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data:
6 - 5x
9 - 4x
Step 02:
subtraction:
we must apply the algebraic rules to find the solution
9 - 4x - (6 - 5x)
9 - 4x - 6 + 5x
- 4x + 5x - 6 + 9
5x - 4x + 9 - 6
1x + 3
x + 3
The answer is:
1 x + 3