algebra · worked example

Solve 3x + 9 = 0 — x = -3

Method: isolamento linear. Verified step-by-step solution with our free AI math solver.

Problem

$3x + 9 = 0$

Step-by-step solution

Subtraia $9$ de ambos os lados: $3x = -9$ .
Divida ambos os lados por $3$ : $x = -3$ .

Answer

$x = -3$

Want to solve a different problem? Open the linear solver →

Related worked examples