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Simplifying 3 + -4a = 4(a + -3) Reorder the terms: 3 + -4a = 4(-3 + a) 3 + -4a = (-3 * 4 + a * 4) 3 + -4a = (-12 + 4a) Solving 3 + -4a = -12 + 4a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4a' to each side of the equation. 3 + -4a + -4a = -12 + 4a + -4a Combine like terms: -4a + -4a = -8a 3 + -8a = -12 + 4a + -4a Combine like terms: 4a + -4a = 0 3 + -8a = -12 + 0 3 + -8a = -12 Add '-3' to each side of the equation. 3 + -3 + -8a = -12 + -3 Combine like terms: 3 + -3 = 0 0 + -8a = -12 + -3 -8a = -12 + -3 Combine like terms: -12 + -3 = -15 -8a = -15 Divide each side by '-8'. a = 1.875 Simplifying a = 1.875
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