-2v-(-1)=21

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Solution for -2v-(-1)=21 equation: 


Simplifying
-2v + -1(-1) = 21

Multiply -1 * -1
-2v + 1 = 21

Reorder the terms:
1 + -2v = 21

Solving
1 + -2v = 21

Solving for variable 'v'.

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

Add '-1' to each side of the equation.
1 + -1 + -2v = 21 + -1

Combine like terms: 1 + -1 = 0
0 + -2v = 21 + -1
-2v = 21 + -1

Combine like terms: 21 + -1 = 20
-2v = 20

Divide each side by '-2'.
v = -10

Simplifying
v = -10

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