Pre-Algebra Examples

$4 x - 5 = 3 x + 7$

Step 1

Move all terms containing $x$ to the left side of the equation.

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Step 1.1

Subtract $3 x$ from both sides of the equation.

$4 x - 5 - 3 x = 7$

Step 1.2

Subtract $3 x$ from $4 x$ .

$x - 5 = 7$

Step 2

Move all terms not containing $x$ to the right side of the equation.

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Step 2.1

Add $5$ to both sides of the equation.

$x = 7 + 5$

Step 2.2

Add $7$ and $5$ .

$x = 12$