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Simplifying 4.9 = -0.98(a + 1) Reorder the terms: 4.9 = -0.98(1 + a) 4.9 = (1 * -0.98 + a * -0.98) 4.9 = (-0.98 + -0.98a) Solving 4.9 = -0.98 + -0.98a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.98a' to each side of the equation. 4.9 + 0.98a = -0.98 + -0.98a + 0.98a Combine like terms: -0.98a + 0.98a = 0.00 4.9 + 0.98a = -0.98 + 0.00 4.9 + 0.98a = -0.98 Add '-4.9' to each side of the equation. 4.9 + -4.9 + 0.98a = -0.98 + -4.9 Combine like terms: 4.9 + -4.9 = 0.0 0.0 + 0.98a = -0.98 + -4.9 0.98a = -0.98 + -4.9 Combine like terms: -0.98 + -4.9 = -5.88 0.98a = -5.88 Divide each side by '0.98'. a = -6 Simplifying a = -6
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