-3(5-9u)=25+7u

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Solution for -3(5-9u)=25+7u equation:


Simplifying
-3(5 + -9u) = 25 + 7u
(5 * -3 + -9u * -3) = 25 + 7u
(-15 + 27u) = 25 + 7u

Solving
-15 + 27u = 25 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
-15 + 27u + -7u = 25 + 7u + -7u

Combine like terms: 27u + -7u = 20u
-15 + 20u = 25 + 7u + -7u

Combine like terms: 7u + -7u = 0
-15 + 20u = 25 + 0
-15 + 20u = 25

Add '15' to each side of the equation.
-15 + 15 + 20u = 25 + 15

Combine like terms: -15 + 15 = 0
0 + 20u = 25 + 15
20u = 25 + 15

Combine like terms: 25 + 15 = 40
20u = 40

Divide each side by '20'.
u = 2

Simplifying
u = 2

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