Examples

$y = 7 x - 3 (x - 1)$

Step 1

Simplify

$7 x - 3 (x - 1)$ .

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Step 1.1

Simplify each term.

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Step 1.1.1

Apply the distributive property.

$y = 7 x - 3 x - 3 \cdot - 1$

Step 1.1.2

Multiply

$- 3$ by

$- 1$ .

$y = 7 x - 3 x + 3$

Step 1.2

Subtract

$3 x$ from

$7 x$ .

$y = 4 x + 3$

Step 2

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be

$0$ or

$1$ for each of its variables. In this case, the degree of variable

$y$ is

$1$ and the degree of variable

$x$ is

$1$ .

Linear

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