7.5-v=4

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Solution for 7.5-v=4 equation: 


Simplifying
7.5 + -1v = 4

Solving
7.5 + -1v = 4

Solving for variable 'v'.

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

Add '-7.5' to each side of the equation.
7.5 + -7.5 + -1v = 4 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + -1v = 4 + -7.5
-1v = 4 + -7.5

Combine like terms: 4 + -7.5 = -3.5
-1v = -3.5

Divide each side by '-1'.
v = 3.5

Simplifying
v = 3.5

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