Algebra Examples

$x + y = 9$ $0.5 x + 0.2 y = 3.9$

Step 1

Reduce the system.

$y = 9 - x, y = 19.5 - 2.5 x$

Step 2

Simplify the right side.

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Step 2.1

Reorder $9$ and $- x$ .

$y = - x + 9$

$y = 19.5 - 2.5 x$

$y = - x + 9$

$y = 19.5 - 2.5 x$

Step 3

Simplify the right side.

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Step 3.1

Reorder $19.5$ and $- 2.5 x$ .

$y = - 2.5 x + 19.5$

$y = - x + 9$

$y = - 2.5 x + 19.5$

$y = - x + 9$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$