Simplify (4x^2y^3+2xy^2-2y)-(-7x^2y^3+6xy^2-2y)

$(4 x^{2} y^{3} + 2 x y^{2} - 2 y) - (- 7 x^{2} y^{3} + 6 x y^{2} - 2 y)$

Simplify each term.

Apply the distributive property.

$4 x^{2} y^{3} + 2 x y^{2} - 2 y - (- 7 x^{2} y^{3}) - (6 x y^{2}) - (- 2 y)$

Simplify.

Multiply $- 7$ by $- 1$ .

$4 x^{2} y^{3} + 2 x y^{2} - 2 y + 7 (x^{2} y^{3}) - (6 x y^{2}) - (- 2 y)$

Multiply $6$ by $- 1$ .

$4 x^{2} y^{3} + 2 x y^{2} - 2 y + 7 (x^{2} y^{3}) - 6 (x y^{2}) - (- 2 y)$

Multiply $- 2$ by $- 1$ .

$4 x^{2} y^{3} + 2 x y^{2} - 2 y + 7 (x^{2} y^{3}) - 6 (x y^{2}) + 2 y$

Remove parentheses.

$4 x^{2} y^{3} + 2 x y^{2} - 2 y + 7 x^{2} y^{3} - 6 x y^{2} + 2 y$

Simplify by adding terms.

Combine the opposite terms in $4 x^{2} y^{3} + 2 x y^{2} - 2 y + 7 x^{2} y^{3} - 6 x y^{2} + 2 y$ .

Add $- 2 y$ and $2 y$ .

$4 x^{2} y^{3} + 2 x y^{2} + 7 x^{2} y^{3} - 6 x y^{2} + 0$

Add $4 x^{2} y^{3} + 2 x y^{2} + 7 x^{2} y^{3} - 6 x y^{2}$ and $0$ .

$4 x^{2} y^{3} + 2 x y^{2} + 7 x^{2} y^{3} - 6 x y^{2}$

Add $4 x^{2} y^{3}$ and $7 x^{2} y^{3}$ .

$11 x^{2} y^{3} + 2 x y^{2} - 6 x y^{2}$

Subtract $6 x y^{2}$ from $2 x y^{2}$ .

$11 x^{2} y^{3} - 4 x y^{2}$