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Simplifying 22 = 1 + -7a Solving 22 = 1 + -7a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '7a' to each side of the equation. 22 + 7a = 1 + -7a + 7a Combine like terms: -7a + 7a = 0 22 + 7a = 1 + 0 22 + 7a = 1 Add '-22' to each side of the equation. 22 + -22 + 7a = 1 + -22 Combine like terms: 22 + -22 = 0 0 + 7a = 1 + -22 7a = 1 + -22 Combine like terms: 1 + -22 = -21 7a = -21 Divide each side by '7'. a = -3 Simplifying a = -3
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