Algebra Examples

$7 (d - 1) = 6 d$

Step 1

Simplify $7 (d - 1)$ .

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Step 1.1

Rewrite.

$0 + 0 + 7 (d - 1) = 6 d$

Step 1.2

Simplify by adding zeros.

$7 (d - 1) = 6 d$

Step 1.3

Apply the distributive property.

$7 d + 7 \cdot - 1 = 6 d$

Step 1.4

Multiply $7$ by $- 1$ .

$7 d - 7 = 6 d$

Step 2

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

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Step 2.1

Subtract $6 d$ from both sides of the equation.

$7 d - 7 - 6 d = 0$

Step 2.2

Subtract $6 d$ from $7 d$ .

$d - 7 = 0$

Step 3

Add $7$ to both sides of the equation.

$d = 7$