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Simplifying 10 + -7x = -133 + -28x Solving 10 + -7x = -133 + -28x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '28x' to each side of the equation. 10 + -7x + 28x = -133 + -28x + 28x Combine like terms: -7x + 28x = 21x 10 + 21x = -133 + -28x + 28x Combine like terms: -28x + 28x = 0 10 + 21x = -133 + 0 10 + 21x = -133 Add '-10' to each side of the equation. 10 + -10 + 21x = -133 + -10 Combine like terms: 10 + -10 = 0 0 + 21x = -133 + -10 21x = -133 + -10 Combine like terms: -133 + -10 = -143 21x = -143 Divide each side by '21'. x = -6.80952381 Simplifying x = -6.80952381

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