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Simplifying 49 + -2 = 3a + -10a Combine like terms: 49 + -2 = 47 47 = 3a + -10a Combine like terms: 3a + -10a = -7a 47 = -7a Solving 47 = -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. 47 + 7a = -7a + 7a Combine like terms: -7a + 7a = 0 47 + 7a = 0 Add '-47' to each side of the equation. 47 + -47 + 7a = 0 + -47 Combine like terms: 47 + -47 = 0 0 + 7a = 0 + -47 7a = 0 + -47 Combine like terms: 0 + -47 = -47 7a = -47 Divide each side by '7'. a = -6.714285714 Simplifying a = -6.714285714

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