How do you solve $\frac{2}{5} x - 15= \frac{5}{8} x - 16$ ?

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Answer 1 · 2018-06-26T12:08:03

$x$ =4.444 or $x$ = $40/9$

Start by bringing all like terms on one side:

$2/5$ $x$ - $5/8$ $x$ = -16 +15

Here, notice that the signs flip on going to the other side.

So you get:

- $9/40$ $x$ = -1

Here - $9/40$ is multiplied to $x$ so it'll go to the other side by division. This will cancel the negative sign of $-1$ .

So you get:

$x$ = 4.4444

or

$x$ = $40/9$

How do you solve \frac{2}{5} x - 15= \frac{5}{8} x - 16\frac{2}{5} x - 15= \frac{5}{8} x - 16?