7u+20=-16+15u-10u

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Solution for 7u+20=-16+15u-10u equation:


Simplifying
7u + 20 = -16 + 15u + -10u

Reorder the terms:
20 + 7u = -16 + 15u + -10u

Combine like terms: 15u + -10u = 5u
20 + 7u = -16 + 5u

Solving
20 + 7u = -16 + 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
20 + 7u + -5u = -16 + 5u + -5u

Combine like terms: 7u + -5u = 2u
20 + 2u = -16 + 5u + -5u

Combine like terms: 5u + -5u = 0
20 + 2u = -16 + 0
20 + 2u = -16

Add '-20' to each side of the equation.
20 + -20 + 2u = -16 + -20

Combine like terms: 20 + -20 = 0
0 + 2u = -16 + -20
2u = -16 + -20

Combine like terms: -16 + -20 = -36
2u = -36

Divide each side by '2'.
u = -18

Simplifying
u = -18

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