Pre-Algebra Examples

$20 + 8 = - 10 t + 3 t$

Step 1

Rewrite the equation as $- 10 t + 3 t = 20 + 8$ .

$- 10 t + 3 t = 20 + 8$

Step 2

Add $- 10 t$ and $3 t$ .

$- 7 t = 20 + 8$

Step 3

Add $20$ and $8$ .

$- 7 t = 28$

Step 4

Divide each term in $- 7 t = 28$ by $- 7$ and simplify.

Tap for more steps...

Step 4.1

Divide each term in $- 7 t = 28$ by $- 7$ .

$\frac{- 7 t}{- 7} = \frac{28}{- 7}$

Step 4.2

Simplify the left side.

Tap for more steps...

Step 4.2.1

Cancel the common factor of $- 7$ .

Tap for more steps...

Step 4.2.1.1

Cancel the common factor.

$\frac{- 7 t}{- 7} = \frac{28}{- 7}$

Step 4.2.1.2

Divide $t$ by $1$ .

$t = \frac{28}{- 7}$

Step 4.3

Simplify the right side.

Tap for more steps...

Step 4.3.1

Divide $28$ by $- 7$ .

$t = - 4$