7(7-3u)=4(u+3)

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Solution for 7(7-3u)=4(u+3) equation:


Simplifying
7(7 + -3u) = 4(u + 3)
(7 * 7 + -3u * 7) = 4(u + 3)
(49 + -21u) = 4(u + 3)

Reorder the terms:
49 + -21u = 4(3 + u)
49 + -21u = (3 * 4 + u * 4)
49 + -21u = (12 + 4u)

Solving
49 + -21u = 12 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
49 + -21u + -4u = 12 + 4u + -4u

Combine like terms: -21u + -4u = -25u
49 + -25u = 12 + 4u + -4u

Combine like terms: 4u + -4u = 0
49 + -25u = 12 + 0
49 + -25u = 12

Add '-49' to each side of the equation.
49 + -49 + -25u = 12 + -49

Combine like terms: 49 + -49 = 0
0 + -25u = 12 + -49
-25u = 12 + -49

Combine like terms: 12 + -49 = -37
-25u = -37

Divide each side by '-25'.
u = 1.48

Simplifying
u = 1.48

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