Algebra Examples

$7 j + 5 - 8 k$ when $j = 0.5$ and $k = 0.25$

Step 1

Replace the variable $j$ with $0.5$ in the expression.

$7 (0.5) + 5 - 8 k$

Step 2

Replace the variable $k$ with $0.25$ in the expression.

$7 (0.5) + 5 - 8 \cdot 0.25$

Step 3

Simplify each term.

Tap for more steps...

Step 3.1

Multiply $7$ by $0.5$ .

$3.5 + 5 - 8 \cdot 0.25$

Step 3.2

Multiply $- 8$ by $0.25$ .

$3.5 + 5 - 2$

Step 4

Simplify by adding and subtracting.

Tap for more steps...

Step 4.1

Add $3.5$ and $5$ .

$8.5 - 2$

Step 4.2

Subtract $2$ from $8.5$ .

$6.5$