Algebra Examples

$y = 1 - 2 x$ , $x = 9$

Step 1

Replace all occurrences of $x$ in $y = 1 - 2 x$ with $9$ .

$y = 1 - 2 \cdot 9$

$x = 9$

Step 2

Simplify the right side.

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Step 2.1

Simplify $1 - 2 \cdot 9$ .

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Step 2.1.1

Multiply $- 2$ by $9$ .

$y = 1 - 18$

$x = 9$

Step 2.1.2

Subtract $18$ from $1$ .

$y = - 17$

$x = 9$

$y = - 17$

$x = 9$

$y = - 17$

$x = 9$