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Simplifying -31 = 4 + 7x Solving -31 = 4 + 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. -31 + -7x = 4 + 7x + -7x Combine like terms: 7x + -7x = 0 -31 + -7x = 4 + 0 -31 + -7x = 4 Add '31' to each side of the equation. -31 + 31 + -7x = 4 + 31 Combine like terms: -31 + 31 = 0 0 + -7x = 4 + 31 -7x = 4 + 31 Combine like terms: 4 + 31 = 35 -7x = 35 Divide each side by '-7'. x = -5 Simplifying x = -5
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