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Simplifying 3 = 7x + 2(-7x) Remove parenthesis around (-7x) 3 = 7x + 2 * -7x Multiply 2 * -7 3 = 7x + -14x Combine like terms: 7x + -14x = -7x 3 = -7x Solving 3 = -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. 3 + 7x = -7x + 7x Combine like terms: -7x + 7x = 0 3 + 7x = 0 Add '-3' to each side of the equation. 3 + -3 + 7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 0 + -3 7x = 0 + -3 Combine like terms: 0 + -3 = -3 7x = -3 Divide each side by '7'. x = -0.4285714286 Simplifying x = -0.4285714286
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