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Simplifying -20 = -28 + 4t Solving -20 = -28 + 4t Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4t' to each side of the equation. -20 + -4t = -28 + 4t + -4t Combine like terms: 4t + -4t = 0 -20 + -4t = -28 + 0 -20 + -4t = -28 Add '20' to each side of the equation. -20 + 20 + -4t = -28 + 20 Combine like terms: -20 + 20 = 0 0 + -4t = -28 + 20 -4t = -28 + 20 Combine like terms: -28 + 20 = -8 -4t = -8 Divide each side by '-4'. t = 2 Simplifying t = 2
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