40v+70=90v+30

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Solution for 40v+70=90v+30 equation:


Simplifying
40v + 70 = 90v + 30

Reorder the terms:
70 + 40v = 90v + 30

Reorder the terms:
70 + 40v = 30 + 90v

Solving
70 + 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.
70 + 40v + -90v = 30 + 90v + -90v

Combine like terms: 40v + -90v = -50v
70 + -50v = 30 + 90v + -90v

Combine like terms: 90v + -90v = 0
70 + -50v = 30 + 0
70 + -50v = 30

Add '-70' to each side of the equation.
70 + -70 + -50v = 30 + -70

Combine like terms: 70 + -70 = 0
0 + -50v = 30 + -70
-50v = 30 + -70

Combine like terms: 30 + -70 = -40
-50v = -40

Divide each side by '-50'.
v = 0.8

Simplifying
v = 0.8

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