-45=9v-4(3)-5v+7(5)

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Solution for -45=9v-4(3)-5v+7(5) equation:


Simplifying
-45 = 9v + -4(3) + -5v + 7(5)

Multiply -4 * 3
-45 = 9v + -12 + -5v + 7(5)

Multiply 7 * 5
-45 = 9v + -12 + -5v + 35

Reorder the terms:
-45 = -12 + 35 + 9v + -5v

Combine like terms: -12 + 35 = 23
-45 = 23 + 9v + -5v

Combine like terms: 9v + -5v = 4v
-45 = 23 + 4v

Solving
-45 = 23 + 4v

Solving for variable 'v'.

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

Add '-4v' to each side of the equation.
-45 + -4v = 23 + 4v + -4v

Combine like terms: 4v + -4v = 0
-45 + -4v = 23 + 0
-45 + -4v = 23

Add '45' to each side of the equation.
-45 + 45 + -4v = 23 + 45

Combine like terms: -45 + 45 = 0
0 + -4v = 23 + 45
-4v = 23 + 45

Combine like terms: 23 + 45 = 68
-4v = 68

Divide each side by '-4'.
v = -17

Simplifying
v = -17

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