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Simplifying -7(k + 1) + -1k + -8 = -8(k + 5) + 25 Reorder the terms: -7(1 + k) + -1k + -8 = -8(k + 5) + 25 (1 * -7 + k * -7) + -1k + -8 = -8(k + 5) + 25 (-7 + -7k) + -1k + -8 = -8(k + 5) + 25 Reorder the terms: -7 + -8 + -7k + -1k = -8(k + 5) + 25 Combine like terms: -7 + -8 = -15 -15 + -7k + -1k = -8(k + 5) + 25 Combine like terms: -7k + -1k = -8k -15 + -8k = -8(k + 5) + 25 Reorder the terms: -15 + -8k = -8(5 + k) + 25 -15 + -8k = (5 * -8 + k * -8) + 25 -15 + -8k = (-40 + -8k) + 25 Reorder the terms: -15 + -8k = -40 + 25 + -8k Combine like terms: -40 + 25 = -15 -15 + -8k = -15 + -8k Add '15' to each side of the equation. -15 + 15 + -8k = -15 + 15 + -8k Combine like terms: -15 + 15 = 0 0 + -8k = -15 + 15 + -8k -8k = -15 + 15 + -8k Combine like terms: -15 + 15 = 0 -8k = 0 + -8k -8k = -8k Add '8k' to each side of the equation. -8k + 8k = -8k + 8k Combine like terms: -8k + 8k = 0 0 = -8k + 8k Combine like terms: -8k + 8k = 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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