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Simplifying -7t + -21 = 49 Reorder the terms: -21 + -7t = 49 Solving -21 + -7t = 49 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + -7t = 49 + 21 Combine like terms: -21 + 21 = 0 0 + -7t = 49 + 21 -7t = 49 + 21 Combine like terms: 49 + 21 = 70 -7t = 70 Divide each side by '-7'. t = -10 Simplifying t = -10
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