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Simplifying 3a(-1b) + 4(-1a)(b) + 7 + -1(-1ab) = 0 Remove parenthesis around (-1b) 3a * -1b + 4(-1a)(b) + 7 + -1(-1ab) = 0 Reorder the terms for easier multiplication: 3 * -1a * b + 4(-1a)(b) + 7 + -1(-1ab) = 0 Multiply 3 * -1 -3a * b + 4(-1a)(b) + 7 + -1(-1ab) = 0 Multiply a * b -3ab + 4(-1a)(b) + 7 + -1(-1ab) = 0 Remove parenthesis around (-1a) -3ab + 4 * -1a(b) + 7 + -1(-1ab) = 0 Multiply 4 * -1 -3ab + -4a * b + 7 + -1(-1ab) = 0 Multiply a * b -3ab + -4ab + 7 + -1(-1ab) = 0 Remove parenthesis around (-1ab) -3ab + -4ab + 7 + -1 * -1ab = 0 Multiply -1 * -1 -3ab + -4ab + 7 + 1ab = 0 Reorder the terms: 7 + -3ab + -4ab + 1ab = 0 Combine like terms: -3ab + -4ab = -7ab 7 + -7ab + 1ab = 0 Combine like terms: -7ab + 1ab = -6ab 7 + -6ab = 0 Solving 7 + -6ab = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -6ab = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -6ab = 0 + -7 -6ab = 0 + -7 Combine like terms: 0 + -7 = -7 -6ab = -7 Divide each side by '-6b'. a = 1.166666667b-1 Simplifying a = 1.166666667b-1
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