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Simplifying (6 + -27) = (4x + 7) Combine like terms: 6 + -27 = -21 (-21) = (4x + 7) -21 = (4x + 7) Reorder the terms: -21 = (7 + 4x) Remove parenthesis around (7 + 4x) -21 = 7 + 4x Solving -21 = 7 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. -21 + -4x = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 -21 + -4x = 7 + 0 -21 + -4x = 7 Add '21' to each side of the equation. -21 + 21 + -4x = 7 + 21 Combine like terms: -21 + 21 = 0 0 + -4x = 7 + 21 -4x = 7 + 21 Combine like terms: 7 + 21 = 28 -4x = 28 Divide each side by '-4'. x = -7 Simplifying x = -7
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