Pre-Algebra Examples

$- 10 u + 18 - 5 u^{7}$

Step 1

Write $- 10 u + 18 - 5 u^{7}$ as an equation.

$y = - 10 u + 18 - 5 u^{7}$

Step 2

Simplify $- 10 u + 18 - 5 u^{7}$ .

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Step 2.1

Move $18$ .

$y = - 10 u - 5 u^{7} + 18$

Step 2.2

Reorder $- 10 u$ and $- 5 u^{7}$ .

$y = - 5 u^{7} - 10 u + 18$

Step 3

The given equation $y = - 5 u^{7} - 10 u + 18$ can not be written as $y = k x^{2}$ , so $y$ doesn't vary directly with $x^{2}$ .

$y$ doesn't vary directly with $x$