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Simplifying 7x + 7(4x + -13) = 189 Reorder the terms: 7x + 7(-13 + 4x) = 189 7x + (-13 * 7 + 4x * 7) = 189 7x + (-91 + 28x) = 189 Reorder the terms: -91 + 7x + 28x = 189 Combine like terms: 7x + 28x = 35x -91 + 35x = 189 Solving -91 + 35x = 189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '91' to each side of the equation. -91 + 91 + 35x = 189 + 91 Combine like terms: -91 + 91 = 0 0 + 35x = 189 + 91 35x = 189 + 91 Combine like terms: 189 + 91 = 280 35x = 280 Divide each side by '35'. x = 8 Simplifying x = 8
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