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Simplifying 4(x + -4) * 5 = x + -7 Reorder the terms: 4(-4 + x) * 5 = x + -7 Reorder the terms for easier multiplication: 4 * 5(-4 + x) = x + -7 Multiply 4 * 5 20(-4 + x) = x + -7 (-4 * 20 + x * 20) = x + -7 (-80 + 20x) = x + -7 Reorder the terms: -80 + 20x = -7 + x Solving -80 + 20x = -7 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. -80 + 20x + -1x = -7 + x + -1x Combine like terms: 20x + -1x = 19x -80 + 19x = -7 + x + -1x Combine like terms: x + -1x = 0 -80 + 19x = -7 + 0 -80 + 19x = -7 Add '80' to each side of the equation. -80 + 80 + 19x = -7 + 80 Combine like terms: -80 + 80 = 0 0 + 19x = -7 + 80 19x = -7 + 80 Combine like terms: -7 + 80 = 73 19x = 73 Divide each side by '19'. x = 3.842105263 Simplifying x = 3.842105263
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