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