4.6-(-v)=.4

Solution for 4.6-(-v)=.4 equation:

Simplifying
4.6 + -1(-1v) = 0.4

Remove parenthesis around (-1v)
4.6 + -1 * -1v = 0.4

Multiply -1 * -1
4.6 + 1v = 0.4

Solving
4.6 + 1v = 0.4

Solving for variable 'v'.

Move all terms containing v to the left, all other terms to the right.

Add '-4.6' to each side of the equation.
4.6 + -4.6 + 1v = 0.4 + -4.6

Combine like terms: 4.6 + -4.6 = 0.0
0.0 + 1v = 0.4 + -4.6
1v = 0.4 + -4.6

Combine like terms: 0.4 + -4.6 = -4.2
1v = -4.2

Divide each side by '1'.
v = -4.2

Simplifying
v = -4.2