16u+4-6u=6u-21-6u

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Solution for 16u+4-6u=6u-21-6u equation:


Simplifying
16u + 4 + -6u = 6u + -21 + -6u

Reorder the terms:
4 + 16u + -6u = 6u + -21 + -6u

Combine like terms: 16u + -6u = 10u
4 + 10u = 6u + -21 + -6u

Reorder the terms:
4 + 10u = -21 + 6u + -6u

Combine like terms: 6u + -6u = 0
4 + 10u = -21 + 0
4 + 10u = -21

Solving
4 + 10u = -21

Solving for variable 'u'.

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

Add '-4' to each side of the equation.
4 + -4 + 10u = -21 + -4

Combine like terms: 4 + -4 = 0
0 + 10u = -21 + -4
10u = -21 + -4

Combine like terms: -21 + -4 = -25
10u = -25

Divide each side by '10'.
u = -2.5

Simplifying
u = -2.5

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