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Simplifying 7(x + 3) + -10 = 7x + 4 Reorder the terms: 7(3 + x) + -10 = 7x + 4 (3 * 7 + x * 7) + -10 = 7x + 4 (21 + 7x) + -10 = 7x + 4 Reorder the terms: 21 + -10 + 7x = 7x + 4 Combine like terms: 21 + -10 = 11 11 + 7x = 7x + 4 Reorder the terms: 11 + 7x = 4 + 7x Add '-7x' to each side of the equation. 11 + 7x + -7x = 4 + 7x + -7x Combine like terms: 7x + -7x = 0 11 + 0 = 4 + 7x + -7x 11 = 4 + 7x + -7x Combine like terms: 7x + -7x = 0 11 = 4 + 0 11 = 4 Solving 11 = 4 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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