2.1=4.1-(-v)

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Solution for 2.1=4.1-(-v) equation:


Simplifying
2.1 = 4.1 + -1(-1v)

Remove parenthesis around (-1v)
2.1 = 4.1 + -1 * -1v

Multiply -1 * -1
2.1 = 4.1 + 1v

Solving
2.1 = 4.1 + 1v

Solving for variable 'v'.

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

Add '-1v' to each side of the equation.
2.1 + -1v = 4.1 + 1v + -1v

Combine like terms: 1v + -1v = 0
2.1 + -1v = 4.1 + 0
2.1 + -1v = 4.1

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -1v = 4.1 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -1v = 4.1 + -2.1
-1v = 4.1 + -2.1

Combine like terms: 4.1 + -2.1 = 2
-1v = 2

Divide each side by '-1'.
v = -2

Simplifying
v = -2

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