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Simplifying (6 * -28 + 3x) + (-7x * -28 + 3x) = -91 Multiply 6 * -28 (-168 + 3x) + (-7x * -28 + 3x) = -91 Remove parenthesis around (-168 + 3x) -168 + 3x + (-7x * -28 + 3x) = -91 Reorder the terms for easier multiplication: -168 + 3x + (-7 * -28x + 3x) = -91 Multiply -7 * -28 -168 + 3x + (196x + 3x) = -91 Combine like terms: 196x + 3x = 199x -168 + 3x + (199x) = -91 -168 + 3x + (199x) = -91 Combine like terms: 3x + (199x) = 202x -168 + 202x = -91 Solving -168 + 202x = -91 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '168' to each side of the equation. -168 + 168 + 202x = -91 + 168 Combine like terms: -168 + 168 = 0 0 + 202x = -91 + 168 202x = -91 + 168 Combine like terms: -91 + 168 = 77 202x = 77 Divide each side by '202'. x = 0.3811881188 Simplifying x = 0.3811881188
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