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Simplifying 7 = 2x + 4(-2x) Remove parenthesis around (-2x) 7 = 2x + 4 * -2x Multiply 4 * -2 7 = 2x + -8x Combine like terms: 2x + -8x = -6x 7 = -6x Solving 7 = -6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6x' to each side of the equation. 7 + 6x = -6x + 6x Combine like terms: -6x + 6x = 0 7 + 6x = 0 Add '-7' to each side of the equation. 7 + -7 + 6x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 6x = 0 + -7 6x = 0 + -7 Combine like terms: 0 + -7 = -7 6x = -7 Divide each side by '6'. x = -1.166666667 Simplifying x = -1.166666667
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