Pre-Algebra Examples

$2 a + b - c - d$ and $4 a - 3 b - 2 c + 5 d$

Step 1

Add the expressions.

$2 a + b - c - d + 4 a - 3 b - 2 c + 5 d$

Step 2

Add $2 a$ and $4 a$ .

$6 a + b - c - d - 3 b - 2 c + 5 d$

Step 3

Subtract $3 b$ from $b$ .

$6 a - 2 b - c - d - 2 c + 5 d$

Step 4

Subtract $2 c$ from $- c$ .

$6 a - 2 b - 3 c - d + 5 d$

Step 5

Add $- d$ and $5 d$ .

$6 a - 2 b - 3 c + 4 d$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$