Algebra Examples

$19 d - 16 d - d - d - 1 = 12$

Step 1

Simplify $19 d - 16 d - d - d - 1$ .

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Step 1.1

Subtract $16 d$ from $19 d$ .

$3 d - d - d - 1 = 12$

Step 1.2

Subtract $d$ from $3 d$ .

$2 d - d - 1 = 12$

Step 1.3

Subtract $d$ from $2 d$ .

$d - 1 = 12$

Step 2

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

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Step 2.1

Add $1$ to both sides of the equation.

$d = 12 + 1$

Step 2.2

Add $12$ and $1$ .

$d = 13$