Simplify (y^2-7y-5)-(-3y^2+3y-4)

$(y^{2} - 7 y - 5) - (- 3 y^{2} + 3 y - 4)$

Simplify each term.

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Apply the distributive property.

$y^{2} - 7 y - 5 - (- 3 y^{2}) - (3 y) - - 4$

Simplify.

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Multiply $- 3$ by $- 1$ .

$y^{2} - 7 y - 5 + 3 y^{2} - (3 y) - - 4$

Multiply $3$ by $- 1$ .

$y^{2} - 7 y - 5 + 3 y^{2} - 3 y - - 4$

Multiply $- 1$ by $- 4$ .

$y^{2} - 7 y - 5 + 3 y^{2} - 3 y + 4$

Simplify by adding terms.

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Add $y^{2}$ and $3 y^{2}$ .

$4 y^{2} - 7 y - 5 - 3 y + 4$

Subtract $3 y$ from $- 7 y$ .

$4 y^{2} - 10 y - 5 + 4$

Add $- 5$ and $4$ .

$4 y^{2} - 10 y - 1$

Simplify (y^2-7y-5)-(-3y^2+3y-4)

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