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Simplifying 6a + -20 = 2a + -7 Reorder the terms: -20 + 6a = 2a + -7 Reorder the terms: -20 + 6a = -7 + 2a Solving -20 + 6a = -7 + 2a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2a' to each side of the equation. -20 + 6a + -2a = -7 + 2a + -2a Combine like terms: 6a + -2a = 4a -20 + 4a = -7 + 2a + -2a Combine like terms: 2a + -2a = 0 -20 + 4a = -7 + 0 -20 + 4a = -7 Add '20' to each side of the equation. -20 + 20 + 4a = -7 + 20 Combine like terms: -20 + 20 = 0 0 + 4a = -7 + 20 4a = -7 + 20 Combine like terms: -7 + 20 = 13 4a = 13 Divide each side by '4'. a = 3.25 Simplifying a = 3.25
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