Q: What is -7y plus 4y?

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Combine like terms: -2x - 4y + 5x - 7y = 3x - 11y -2x + 5x = 3x -4y + -7y = -11y

2x + 4y - 5x + 3y = 7y - 3x

4y-7y = -3

2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41

3x + 7y

4x+7y

6x plus 4y

8y - 38

9x + 3y + 5z - 5x + 4z - 7y = 4x - 4y + 9z

10x+2x-3y-4y=12x-7y

10x - 3y + 2x - 4y =(10x + 2x) + (-3y - 4y) =12x - 7y

4y + 3 = 7y - 18Add 18 to each side of the equation:4y + 21 = 7ySubtract 4y from each side:21 = 3yDivide each side by 3:7 = y