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Simplifying 210 + -3x = 42x + 20 Reorder the terms: 210 + -3x = 20 + 42x Solving 210 + -3x = 20 + 42x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42x' to each side of the equation. 210 + -3x + -42x = 20 + 42x + -42x Combine like terms: -3x + -42x = -45x 210 + -45x = 20 + 42x + -42x Combine like terms: 42x + -42x = 0 210 + -45x = 20 + 0 210 + -45x = 20 Add '-210' to each side of the equation. 210 + -210 + -45x = 20 + -210 Combine like terms: 210 + -210 = 0 0 + -45x = 20 + -210 -45x = 20 + -210 Combine like terms: 20 + -210 = -190 -45x = -190 Divide each side by '-45'. x = 4.222222222 Simplifying x = 4.222222222
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