280=5(7v-8)+4(v+2)

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Solution for 280=5(7v-8)+4(v+2) equation:


Simplifying
280 = 5(7v + -8) + 4(v + 2)

Reorder the terms:
280 = 5(-8 + 7v) + 4(v + 2)
280 = (-8 * 5 + 7v * 5) + 4(v + 2)
280 = (-40 + 35v) + 4(v + 2)

Reorder the terms:
280 = -40 + 35v + 4(2 + v)
280 = -40 + 35v + (2 * 4 + v * 4)
280 = -40 + 35v + (8 + 4v)

Reorder the terms:
280 = -40 + 8 + 35v + 4v

Combine like terms: -40 + 8 = -32
280 = -32 + 35v + 4v

Combine like terms: 35v + 4v = 39v
280 = -32 + 39v

Solving
280 = -32 + 39v

Solving for variable 'v'.

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

Add '-39v' to each side of the equation.
280 + -39v = -32 + 39v + -39v

Combine like terms: 39v + -39v = 0
280 + -39v = -32 + 0
280 + -39v = -32

Add '-280' to each side of the equation.
280 + -280 + -39v = -32 + -280

Combine like terms: 280 + -280 = 0
0 + -39v = -32 + -280
-39v = -32 + -280

Combine like terms: -32 + -280 = -312
-39v = -312

Divide each side by '-39'.
v = 8

Simplifying
v = 8

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