Addition and subtraction of Algebraic Expressions.

Add: 6a + 8b - 7c , 2b + c - 4a and a - 3b - 2c

• 4a - 12b + 8c

• 9a + 12b - 8c

• 3a + 7b - 8c

• 2a + 3b - 4c

Add: 5x² + 7y - 8, 4y + 7 - 2x² and 6 – 5y + 4x²

• 7x² - 6y + 5

• 6x² + 3y + 12

• 11x² + 16y - 9

• 7x² + 6y + 5

Subtract 3x + y – 3z from 9x – 5y + z

• 12x + 6y - 4z

• 6x – 6y + 4z

• -6x + 6y - 2z

• 6x - 6y - 4z

Subtract 4a + 5b - 3c from 6a - 3b + c

• 2a - 8b + 4c

• -2a + 8b + 4c

• 12a - 2b + c

• 2a + 8b - 4c

Simplify: (5x³ + 3y³ - 4z³ - 2xyz) + (7z³ - 3x³ + 5y³ - xyz) - (4x³ + 6y³ + 3z³ + 3xyz)

• 2y³ - 6xyz - 2x³

• y³ - 4xyz - 4x³

• 12y³ + 6xyz - 12x³

• 2y² - 6xyz - 2x²