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Simplifying x + 3b = 7x + 5a + -4 Reorder the terms: 3b + x = 7x + 5a + -4 Reorder the terms: 3b + x = -4 + 5a + 7x Solving 3b + x = -4 + 5a + 7x Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1x' to each side of the equation. 3b + x + -1x = -4 + 5a + 7x + -1x Combine like terms: x + -1x = 0 3b + 0 = -4 + 5a + 7x + -1x 3b = -4 + 5a + 7x + -1x Combine like terms: 7x + -1x = 6x 3b = -4 + 5a + 6x Divide each side by '3'. b = -1.333333333 + 1.666666667a + 2x Simplifying b = -1.333333333 + 1.666666667a + 2x
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