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Simplifying -7(b + 6) + -4(8 + 2b) = -15b + -4 Reorder the terms: -7(6 + b) + -4(8 + 2b) = -15b + -4 (6 * -7 + b * -7) + -4(8 + 2b) = -15b + -4 (-42 + -7b) + -4(8 + 2b) = -15b + -4 -42 + -7b + (8 * -4 + 2b * -4) = -15b + -4 -42 + -7b + (-32 + -8b) = -15b + -4 Reorder the terms: -42 + -32 + -7b + -8b = -15b + -4 Combine like terms: -42 + -32 = -74 -74 + -7b + -8b = -15b + -4 Combine like terms: -7b + -8b = -15b -74 + -15b = -15b + -4 Reorder the terms: -74 + -15b = -4 + -15b Add '15b' to each side of the equation. -74 + -15b + 15b = -4 + -15b + 15b Combine like terms: -15b + 15b = 0 -74 + 0 = -4 + -15b + 15b -74 = -4 + -15b + 15b Combine like terms: -15b + 15b = 0 -74 = -4 + 0 -74 = -4 Solving -74 = -4 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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