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