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Simplifying -1(n + -4) + 3 = -1(n + -7) Reorder the terms: -1(-4 + n) + 3 = -1(n + -7) (-4 * -1 + n * -1) + 3 = -1(n + -7) (4 + -1n) + 3 = -1(n + -7) Reorder the terms: 4 + 3 + -1n = -1(n + -7) Combine like terms: 4 + 3 = 7 7 + -1n = -1(n + -7) Reorder the terms: 7 + -1n = -1(-7 + n) 7 + -1n = (-7 * -1 + n * -1) 7 + -1n = (7 + -1n) Add '-7' to each side of the equation. 7 + -7 + -1n = 7 + -7 + -1n Combine like terms: 7 + -7 = 0 0 + -1n = 7 + -7 + -1n -1n = 7 + -7 + -1n Combine like terms: 7 + -7 = 0 -1n = 0 + -1n -1n = -1n Add 'n' to each side of the equation. -1n + n = -1n + n Combine like terms: -1n + n = 0 0 = -1n + n Combine like terms: -1n + n = 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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