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Simplifying 13e + -7 = 12e + 81 Reorder the terms: -7 + 13e = 12e + 81 Reorder the terms: -7 + 13e = 81 + 12e Solving -7 + 13e = 81 + 12e Solving for variable 'e'. Move all terms containing e to the left, all other terms to the right. Add '-12e' to each side of the equation. -7 + 13e + -12e = 81 + 12e + -12e Combine like terms: 13e + -12e = 1e -7 + 1e = 81 + 12e + -12e Combine like terms: 12e + -12e = 0 -7 + 1e = 81 + 0 -7 + 1e = 81 Add '7' to each side of the equation. -7 + 7 + 1e = 81 + 7 Combine like terms: -7 + 7 = 0 0 + 1e = 81 + 7 1e = 81 + 7 Combine like terms: 81 + 7 = 88 1e = 88 Divide each side by '1'. e = 88 Simplifying e = 88
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