Addition and Subtraction of Algebraic Expressions

$7x - y$

$3x + 7y$

$7x + 7y$

$10x - y$

$10x + 7y$

$4x - 3y$

$3x + 3y$

$4x + 3y$

$6x^2 + 2x + 2$

$6x^2 + 4x - 2$

$8x^2 + 2x + 2$

$6x^2 - 2x + 2$

$3x + y - 3$

$7x - 5y + 5$

$7x + y - 3$

$3x - 5y + 5$

$2x + 2y + z$

$10x - 8y + z$

$2x + 8y + z$

$2x - 2y + 3z$

$3x^2 + 4x - 6$

$3x^2 - 4x + 6$

$7x^2 - 2x + 2$

$3x^2 + 2x - 6$

$4x^2 - xy - 2y^2$

$4x^2 + xy + 2y^2$

$2x^2 - xy - 2y^2$

$4x^2 - 3xy - 2y^2$

$6x - 4y + 4z$

$-2x - 4y + 4z$

$-2x + 4y - 4z$

$2x + 4y - 4z$

$4x^2 - 2x + 2$

$10x^2 - 2x + 2$

$4x^2 + 2x + 2$

$4x^2 - 6x + 4$

$2x^2 + xy - y^2$

$4x^2 - xy + y^2$

$2x^2 + 3xy - 3y^2$

$2x^2 - 3xy + 3y^2$