40v+7=90v+30

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Solution for 40v+7=90v+30 equation:


Simplifying
40v + 7 = 90v + 30

Reorder the terms:
7 + 40v = 90v + 30

Reorder the terms:
7 + 40v = 30 + 90v

Solving
7 + 40v = 30 + 90v

Solving for variable 'v'.

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

Add '-90v' to each side of the equation.
7 + 40v + -90v = 30 + 90v + -90v

Combine like terms: 40v + -90v = -50v
7 + -50v = 30 + 90v + -90v

Combine like terms: 90v + -90v = 0
7 + -50v = 30 + 0
7 + -50v = 30

Add '-7' to each side of the equation.
7 + -7 + -50v = 30 + -7

Combine like terms: 7 + -7 = 0
0 + -50v = 30 + -7
-50v = 30 + -7

Combine like terms: 30 + -7 = 23
-50v = 23

Divide each side by '-50'.
v = -0.46

Simplifying
v = -0.46

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