Pre-Algebra Examples

$5 x - 5 \cdot 25 - 3 = 123 \cdot 2$

Step 1

Simplify $5 x - 5 \cdot 25 - 3$ .

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Step 1.1

Multiply $- 5$ by $25$ .

$5 x - 125 - 3 = 123 \cdot 2$

Step 1.2

Subtract $3$ from $- 125$ .

$5 x - 128 = 123 \cdot 2$

Step 2

Multiply $123$ by $2$ .

$5 x - 128 = 246$

Step 3

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

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Step 3.1

Add $128$ to both sides of the equation.

$5 x = 246 + 128$

Step 3.2

Add $246$ and $128$ .

$5 x = 374$

Step 4

Divide each term in $5 x = 374$ by $5$ and simplify.

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Step 4.1

Divide each term in $5 x = 374$ by $5$ .

$\frac{5 x}{5} = \frac{374}{5}$

Step 4.2

Simplify the left side.

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Step 4.2.1

Cancel the common factor of $5$ .

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Step 4.2.1.1

Cancel the common factor.

$\frac{5 x}{5} = \frac{374}{5}$

Step 4.2.1.2

Divide $x$ by $1$ .

$x = \frac{374}{5}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$x = \frac{374}{5}$

Decimal Form:

$x = 74.8$

Mixed Number Form:

$x = 74 \frac{4}{5}$