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Simplifying 52 + -7x = 2x + 21 Reorder the terms: 52 + -7x = 21 + 2x Solving 52 + -7x = 21 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 52 + -7x + -2x = 21 + 2x + -2x Combine like terms: -7x + -2x = -9x 52 + -9x = 21 + 2x + -2x Combine like terms: 2x + -2x = 0 52 + -9x = 21 + 0 52 + -9x = 21 Add '-52' to each side of the equation. 52 + -52 + -9x = 21 + -52 Combine like terms: 52 + -52 = 0 0 + -9x = 21 + -52 -9x = 21 + -52 Combine like terms: 21 + -52 = -31 -9x = -31 Divide each side by '-9'. x = 3.444444444 Simplifying x = 3.444444444
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