Pre-Algebra Examples

$3 (2 x - 1) = 57$

Step 1

Simplify $3 (2 x - 1)$ .

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Step 1.1

Apply the distributive property.

$3 (2 x) + 3 \cdot - 1 = 57$

Step 1.2

Multiply.

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Step 1.2.1

Multiply $2$ by $3$ .

$6 x + 3 \cdot - 1 = 57$

Step 1.2.2

Multiply $3$ by $- 1$ .

$6 x - 3 = 57$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x = 10$

Step 3