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Simplifying 5 * 4 = 7x + -2 Multiply 5 * 4 20 = 7x + -2 Reorder the terms: 20 = -2 + 7x Solving 20 = -2 + 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. 20 + -7x = -2 + 7x + -7x Combine like terms: 7x + -7x = 0 20 + -7x = -2 + 0 20 + -7x = -2 Add '-20' to each side of the equation. 20 + -20 + -7x = -2 + -20 Combine like terms: 20 + -20 = 0 0 + -7x = -2 + -20 -7x = -2 + -20 Combine like terms: -2 + -20 = -22 -7x = -22 Divide each side by '-7'. x = 3.142857143 Simplifying x = 3.142857143
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