Algebraic Expressions

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

-r -10r

• 11r
• -11r
• 9r
• -11

n -10 +9n -3=

• -3
• 9n-3
• n
• 10n -13

7x²-5x+3-2x²-2x-1

• 5x²-7x+2
• 9x²-3x+4
• 5x²+7x+2
• 6x²+2

10x²+9x-5+3x²-8x-7

• 13x²+17x+12
• 14x²-12
• 13x²+x-12
• 2x²

Rewrite the expression by combining like terms.
5x² + 5y + 2x² + 4y² – 4x² + 2y² - 4y

• 3x² + 3xy + 6y
• 6y² + 2xy + 2x
• 7x² + 35x
• 3x² + 6y² + y

Simplify: 2y + 3y² + 13y + 5y²

• 15y + 8y²

• 23y³

• 18y²

• 12y + 2y²