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# Simplify (3x + 5) + (2x - 9) - (4x + 3).

**Solution:**

The given expression can be solved as follows:

(3x + 5) + (2x - 9) - (4x + 3)

By grouping the variables and the constants we have,

3x + 2x - 4x + 5 - 9 + 3

= 5x - 4x + 8 - 9

= x - 1

Let us take another example of simplification:

Simplify: (a^{4} + a^{3} - a) - (a^{3} - 3a^{2} + 5a) + (a^{3} - 4a + 2) - (2a - 3)

Grouping the terms we have,

a^{4} - a^{3} + a^{3} +3a^{2} - a -5a - 4a - 2a + 2 + 3

a^{4} + 3a^{2} - 12a + 5

## Simplify (3x + 5) + (2x - 9) - (4x + 3).

**Summary:**

Simplifying (3x + 5) + (2x - 9) - (4x + 3), we get x - 1

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