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Simplifying 128 = r7 Solving 128 = r7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r7' to each side of the equation. 128 + -1r7 = r7 + -1r7 Combine like terms: r7 + -1r7 = 0 128 + -1r7 = 0 Add '-128' to each side of the equation. 128 + -128 + -1r7 = 0 + -128 Combine like terms: 128 + -128 = 0 0 + -1r7 = 0 + -128 -1r7 = 0 + -128 Combine like terms: 0 + -128 = -128 -1r7 = -128 Divide each side by '-1'. r7 = 128 Simplifying r7 = 128 Reorder the terms: -128 + r7 = 128 + -128 Combine like terms: 128 + -128 = 0 -128 + r7 = 0 The solution to this equation could not be determined.
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