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Simplifying 3x2 + 7 = 154 Reorder the terms: 7 + 3x2 = 154 Solving 7 + 3x2 = 154 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 3x2 = 154 + -7 Combine like terms: 7 + -7 = 0 0 + 3x2 = 154 + -7 3x2 = 154 + -7 Combine like terms: 154 + -7 = 147 3x2 = 147 Divide each side by '3'. x2 = 49 Simplifying x2 = 49 Take the square root of each side: x = {-7, 7}
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