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Simplifying -40 = 7a + 2 Reorder the terms: -40 = 2 + 7a Solving -40 = 2 + 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. -40 + -7a = 2 + 7a + -7a Combine like terms: 7a + -7a = 0 -40 + -7a = 2 + 0 -40 + -7a = 2 Add '40' to each side of the equation. -40 + 40 + -7a = 2 + 40 Combine like terms: -40 + 40 = 0 0 + -7a = 2 + 40 -7a = 2 + 40 Combine like terms: 2 + 40 = 42 -7a = 42 Divide each side by '-7'. a = -6 Simplifying a = -6
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