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Simplifying 12 = 7x + (-4) 12 = 7x + -4 Reorder the terms: 12 = -4 + 7x Solving 12 = -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. 12 + -7x = -4 + 7x + -7x Combine like terms: 7x + -7x = 0 12 + -7x = -4 + 0 12 + -7x = -4 Add '-12' to each side of the equation. 12 + -12 + -7x = -4 + -12 Combine like terms: 12 + -12 = 0 0 + -7x = -4 + -12 -7x = -4 + -12 Combine like terms: -4 + -12 = -16 -7x = -16 Divide each side by '-7'. x = 2.285714286 Simplifying x = 2.285714286
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