Precalculus Examples

y = x + 4

$y = x + 4$

Step 1

The standard form of a linear equation is

A x + B y = C

$A x + B y = C$ .

Step 2

Rewrite the equation.

x + 4 = y

$x + 4 = y$

Step 3

Move all terms containing variables to the left side of the equation.

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Step 3.1

Subtract

y

$y$ from both sides of the equation.

x + 4 - y = 0

$x + 4 - y = 0$

Step 3.2

Move

4

$4$ .

x - y + 4 = 0

$x - y + 4 = 0$

x - y + 4 = 0

$x - y + 4 = 0$

Step 4

Subtract

4

$4$ from both sides of the equation.

x - y = - 4

$x - y = - 4$

Step 5

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