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Simplifying 11(7) + -1(6(7) + -5) = 40 Multiply 11 * 7 77 + -1(6(7) + -5) = 40 Multiply 6 * 7 77 + -1(42 + -5) = 40 Combine like terms: 42 + -5 = 37 77 + -1(37) = 40 Multiply -1 * 37 77 + -37 = 40 Combine like terms: 77 + -37 = 40 40 = 40 Add '-40' to each side of the equation. 40 + -40 = 40 + -40 Combine like terms: 40 + -40 = 0 0 = 40 + -40 Combine like terms: 40 + -40 = 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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