Basic Math Examples

$3 z + 7 = 7 + 2 z + 4$

Step 1

Add $7$ and $4$ .

$3 z + 7 = 2 z + 11$

Step 2

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

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Step 2.1

Subtract $2 z$ from both sides of the equation.

$3 z + 7 - 2 z = 11$

Step 2.2

Subtract $2 z$ from $3 z$ .

$z + 7 = 11$

Step 3

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

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Step 3.1

Subtract $7$ from both sides of the equation.

$z = 11 - 7$

Step 3.2

Subtract $7$ from $11$ .

$z = 4$