210=42-v

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Solution for 210=42-v equation:


Simplifying
210 = 42 + -1v

Solving
210 = 42 + -1v

Solving for variable 'v'.

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

Add 'v' to each side of the equation.
210 + v = 42 + -1v + v

Combine like terms: -1v + v = 0
210 + v = 42 + 0
210 + v = 42

Add '-210' to each side of the equation.
210 + -210 + v = 42 + -210

Combine like terms: 210 + -210 = 0
0 + v = 42 + -210
v = 42 + -210

Combine like terms: 42 + -210 = -168
v = -168

Simplifying
v = -168

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