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Simplifying 3(3y + -1) + -3(3y) = 4 Reorder the terms: 3(-1 + 3y) + -3(3y) = 4 (-1 * 3 + 3y * 3) + -3(3y) = 4 (-3 + 9y) + -3(3y) = 4 Remove parenthesis around (3y) -3 + 9y + -3 * 3y = 4 Multiply -3 * 3 -3 + 9y + -9y = 4 Combine like terms: 9y + -9y = 0 -3 + 0 = 4 -3 = 4 Solving -3 = 4 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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