Solve for n 0.3n=0.8+0.7n

$0.3 n = 0.8 + 0.7 n$

Step 1

Move all terms containing $n$ to the left side of the equation.

Subtract $0.7 n$ from both sides of the equation.

$0.3 n - 0.7 n = 0.8$

Subtract $0.7 n$ from $0.3 n$ .

$- 0.4 n = 0.8$

Step 2

Divide each term in $- 0.4 n = 0.8$ by $- 0.4$ and simplify.

Divide each term in $- 0.4 n = 0.8$ by $- 0.4$ .

$\frac{- 0.4 n}{- 0.4} = \frac{0.8}{- 0.4}$

Simplify the left side.

Cancel the common factor of $- 0.4$ .

Cancel the common factor.

$\frac{- 0.4 n}{- 0.4} = \frac{0.8}{- 0.4}$

Divide $n$ by $1$ .

$n = \frac{0.8}{- 0.4}$

Simplify the right side.

Divide $0.8$ by $- 0.4$ .

$n = - 2$