To find what should be subtracted from 9x + 5y to get x + y, we need to simplify the expression 9x + 5y - (x + y).
Let's start by distributing the negative sign to each term inside the parentheses:
9x + 5y (x + y) = 9x + 5y - x-y
Now, let's combine like terms:
(9x - x) + (5y- y) = 8x + 4y
So, to get x + y from 9x + 5y, you would need to subtract 8x + 4y.
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Answer: Start by subtracting 9x from both sides of the equation. This will give you w - 9x = 5y. Next, divide every term in the equation by 5 to solve for y. This would give you (w - 9x) / 5 = y or y = (w - 9x) / 5.
