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algebra · worked example

Solve 3x + 2 = x + 8 — x = 3

Method: tách biến tuyến tính (biến ở cả hai vế). Verified step-by-step solution with our free AI math solver.

Problem

$3x + 2 = x + 8$

Step-by-step solution

Trừ $x$ ở cả hai vế: $2x + 2 = 8$ .
Trừ $2$ : $2x = 6$ .
Chia cho $2$ : $x = 3$ .

Answer

$x = 3$

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