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Simplifying (x + -4) = 4(2x + 1) Reorder the terms: (-4 + x) = 4(2x + 1) Remove parenthesis around (-4 + x) -4 + x = 4(2x + 1) Reorder the terms: -4 + x = 4(1 + 2x) -4 + x = (1 * 4 + 2x * 4) -4 + x = (4 + 8x) Solving -4 + x = 4 + 8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8x' to each side of the equation. -4 + x + -8x = 4 + 8x + -8x Combine like terms: x + -8x = -7x -4 + -7x = 4 + 8x + -8x Combine like terms: 8x + -8x = 0 -4 + -7x = 4 + 0 -4 + -7x = 4 Add '4' to each side of the equation. -4 + 4 + -7x = 4 + 4 Combine like terms: -4 + 4 = 0 0 + -7x = 4 + 4 -7x = 4 + 4 Combine like terms: 4 + 4 = 8 -7x = 8 Divide each side by '-7'. x = -1.142857143 Simplifying x = -1.142857143
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