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algebra · worked example

Solve 4x + 1 = 2x + 7 — x = 3

Method: 一次方程式變數分離. Verified step-by-step solution with our free AI math solver.

Problem

$4x + 1 = 2x + 7$

Step-by-step solution

兩邊同時減去 $2x$ ： $2x + 1 = 7$ 。
減去 $1$ ： $2x = 6$ 。
除以 $2$ ： $x = 3$ 。

Answer

$x = 3$

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