Pre-Algebra Examples

$12 + 4 x + 4 = 4 (3 + x + 4)$

Step 1

Add $12$ and $4$ .

$4 x + 16 = 4 (3 + x + 4)$

Step 2

Simplify $4 (3 + x + 4)$ .

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Step 2.1

Add $3$ and $4$ .

$4 x + 16 = 4 (x + 7)$

Step 2.2

Apply the distributive property.

$4 x + 16 = 4 x + 4 \cdot 7$

Step 2.3

Multiply $4$ by $7$ .

$4 x + 16 = 4 x + 28$

Step 3

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

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Step 3.1

Subtract $4 x$ from both sides of the equation.

$4 x + 16 - 4 x = 28$

Step 3.2

Combine the opposite terms in $4 x + 16 - 4 x$ .

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Step 3.2.1

Subtract $4 x$ from $4 x$ .

$0 + 16 = 28$

Step 3.2.2

Add $0$ and $16$ .

$16 = 28$

Step 4

Since $16 \neq 28$ , there are no solutions.

No solution