21-5v=8(6v-9)

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Solution for 21-5v=8(6v-9) equation:


Simplifying
21 + -5v = 8(6v + -9)

Reorder the terms:
21 + -5v = 8(-9 + 6v)
21 + -5v = (-9 * 8 + 6v * 8)
21 + -5v = (-72 + 48v)

Solving
21 + -5v = -72 + 48v

Solving for variable 'v'.

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

Add '-48v' to each side of the equation.
21 + -5v + -48v = -72 + 48v + -48v

Combine like terms: -5v + -48v = -53v
21 + -53v = -72 + 48v + -48v

Combine like terms: 48v + -48v = 0
21 + -53v = -72 + 0
21 + -53v = -72

Add '-21' to each side of the equation.
21 + -21 + -53v = -72 + -21

Combine like terms: 21 + -21 = 0
0 + -53v = -72 + -21
-53v = -72 + -21

Combine like terms: -72 + -21 = -93
-53v = -93

Divide each side by '-53'.
v = 1.754716981

Simplifying
v = 1.754716981

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