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Simplifying -15 = 6 + -7x Solving -15 = 6 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -15 + 7x = 6 + -7x + 7x Combine like terms: -7x + 7x = 0 -15 + 7x = 6 + 0 -15 + 7x = 6 Add '15' to each side of the equation. -15 + 15 + 7x = 6 + 15 Combine like terms: -15 + 15 = 0 0 + 7x = 6 + 15 7x = 6 + 15 Combine like terms: 6 + 15 = 21 7x = 21 Divide each side by '7'. x = 3 Simplifying x = 3
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