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Simplifying 7(3) + -4(3(3) + -1) + -2(3) = 0 Multiply 7 * 3 21 + -4(3(3) + -1) + -2(3) = 0 Multiply 3 * 3 21 + -4(9 + -1) + -2(3) = 0 Combine like terms: 9 + -1 = 8 21 + -4(8) + -2(3) = 0 Multiply -4 * 8 21 + -32 + -2(3) = 0 Multiply -2 * 3 21 + -32 + -6 = 0 Combine like terms: 21 + -32 = -11 -11 + -6 = 0 Combine like terms: -11 + -6 = -17 -17 = 0 Solving -17 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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