$$x\cdot3-9x\cdot2-15x+3 = 0$$
Answer
$$ x = \frac{1}{10} $$
Explanation
$$ \begin{aligned} x\cdot3-9x\cdot2-15x+3 &= 0&& \text{simplify left side} \\[1 em]3x-18x-15x+3 &= 0&& \\[1 em]-30x+3 &= 0&& \text{ move the constants to the right } \\[1 em]-30x &= -3&& \text{ divide both sides by $ -30 $ } \\[1 em]x &= \frac{-3}{-30}&& \\[1 em]x &= \frac{1}{10}&& \\[1 em] \end{aligned} $$
This page was created using
Polynomial Equations Solver