Write an expression that is equivalent to 7x + 4y - 9x +5y **Simplify?

or:Write an expression that is equivalent to 7x + 4y - 9x +5y **Simplify?or:You need to learn what the words mean. What you can do with that expr

or:Write an expression that is equivalent to 7x + 4y - 9x +5y **Simplify?

or:You need to learn what the words mean. What you can do with that expression is \"evaluate\". The other words don't apply.7x - 9x = -2x4y + 5y = 9y-2x + 9y

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