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Simplifying 3y + -7x = 21forx Reorder the terms: -7x + 3y = 21forx Solving -7x + 3y = 21forx Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21forx' to each side of the equation. -7x + -21forx + 3y = 21forx + -21forx Reorder the terms: -21forx + -7x + 3y = 21forx + -21forx Combine like terms: 21forx + -21forx = 0 -21forx + -7x + 3y = 0 Add '-3y' to each side of the equation. -21forx + -7x + 3y + -3y = 0 + -3y Combine like terms: 3y + -3y = 0 -21forx + -7x + 0 = 0 + -3y -21forx + -7x = 0 + -3y Remove the zero: -21forx + -7x = -3y Combine like terms: -3y + 3y = 0 -21forx + -7x + 3y = 0 The solution to this equation could not be determined.
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