Pre-Algebra Examples

$y = 3 x + 4 x - 5$

Step 1

The standard form of a linear equation is $A x + B y = C$ .

Step 2

Simplify the right side.

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Step 2.1

Add $3 x$ and $4 x$ .

$y = 7 x - 5$

Step 3

Rewrite the equation.

$7 x - 5 = y$

Step 4

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

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Step 4.1

Subtract $y$ from both sides of the equation.

$7 x - 5 - y = 0$

Step 4.2

Move $- 5$ .

$7 x - y - 5 = 0$

Step 5

Add $5$ to both sides of the equation.

$7 x - y = 5$

Step 6