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Solve the equation. \[ 8 x+7-2(x+1)=9 x+7 \]

Ask by Mcguire Vargas. in the United States
Jan 24,2025

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\( x = -\frac{2}{3} \)

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Mind Expander

First, let's simplify the equation step by step. Starting with the equation: \[ 8x + 7 - 2(x + 1) = 9x + 7. \] Distributing \(-2\) in the term \(-2(x + 1)\): \[ 8x + 7 - 2x - 2 = 9x + 7. \] Now combine like terms on the left side: \[ (8x - 2x) + (7 - 2) = 9x + 7, \] which simplifies to: \[ 6x + 5 = 9x + 7. \] Next, we'll isolate \(x\) by subtracting \(6x\) from both sides: \[ 5 = 9x - 6x + 7, \] resulting in: \[ 5 = 3x + 7. \] Now, subtract \(7\) from both sides: \[ 5 - 7 = 3x, \] yielding: \[ -2 = 3x. \] Dividing both sides by \(3\) gives: \[ x = -\frac{2}{3}. \] So, the solution to the equation is: \[ \boxed{-\frac{2}{3}}. \]

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