20v+5v-21v+1=9

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Solution for 20v+5v-21v+1=9 equation:


Simplifying
20v + 5v + -21v + 1 = 9

Reorder the terms:
1 + 20v + 5v + -21v = 9

Combine like terms: 20v + 5v = 25v
1 + 25v + -21v = 9

Combine like terms: 25v + -21v = 4v
1 + 4v = 9

Solving
1 + 4v = 9

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 + 4v = 9 + -1

Combine like terms: 1 + -1 = 0
0 + 4v = 9 + -1
4v = 9 + -1

Combine like terms: 9 + -1 = 8
4v = 8

Divide each side by '4'.
v = 2

Simplifying
v = 2

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