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Simplifying 2a + -7 = 4a + 2 Reorder the terms: -7 + 2a = 4a + 2 Reorder the terms: -7 + 2a = 2 + 4a Solving -7 + 2a = 2 + 4a Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4a' to each side of the equation. -7 + 2a + -4a = 2 + 4a + -4a Combine like terms: 2a + -4a = -2a -7 + -2a = 2 + 4a + -4a Combine like terms: 4a + -4a = 0 -7 + -2a = 2 + 0 -7 + -2a = 2 Add '7' to each side of the equation. -7 + 7 + -2a = 2 + 7 Combine like terms: -7 + 7 = 0 0 + -2a = 2 + 7 -2a = 2 + 7 Combine like terms: 2 + 7 = 9 -2a = 9 Divide each side by '-2'. a = -4.5 Simplifying a = -4.5
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