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Simplifying 2r + 6 = 2(r + 3) Reorder the terms: 6 + 2r = 2(r + 3) Reorder the terms: 6 + 2r = 2(3 + r) 6 + 2r = (3 * 2 + r * 2) 6 + 2r = (6 + 2r) Add '-6' to each side of the equation. 6 + -6 + 2r = 6 + -6 + 2r Combine like terms: 6 + -6 = 0 0 + 2r = 6 + -6 + 2r 2r = 6 + -6 + 2r Combine like terms: 6 + -6 = 0 2r = 0 + 2r 2r = 2r Add '-2r' to each side of the equation. 2r + -2r = 2r + -2r Combine like terms: 2r + -2r = 0 0 = 2r + -2r Combine like terms: 2r + -2r = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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