Question #44e18

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Answer 1 · 2017-10-18T13:30:44

$4 x - 5 = 15$ $4x-5=15$ , solving for $x = 5$ $x=5$ .

We need to isolate the variable $x$ $x$ .

By doing this, we can add $(+ 5)$ $(+5)$ on both sides.

$4 x - 5 + 5 = 15 + 5$ $4x-5+5=15+5$

$4 x = 20$ $4x=20$

Then, we divide both sides by $4$ $4$ (the coefficient of $x$ $x$ in order to isolate $x$ $x$ )

$\frac{4 x}{4} = \frac{20}{4}$ $(4x)/4=20/4$

$x = 5$ $x=5$

Thus

$x = 5$ $x=5$