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Simplifying 4(7x + -1) + -9x = 19x + 4 Reorder the terms: 4(-1 + 7x) + -9x = 19x + 4 (-1 * 4 + 7x * 4) + -9x = 19x + 4 (-4 + 28x) + -9x = 19x + 4 Combine like terms: 28x + -9x = 19x -4 + 19x = 19x + 4 Reorder the terms: -4 + 19x = 4 + 19x Add '-19x' to each side of the equation. -4 + 19x + -19x = 4 + 19x + -19x Combine like terms: 19x + -19x = 0 -4 + 0 = 4 + 19x + -19x -4 = 4 + 19x + -19x Combine like terms: 19x + -19x = 0 -4 = 4 + 0 -4 = 4 Solving -4 = 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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