7.9u-2-3.2u-10=2.8+u

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Solution for 7.9u-2-3.2u-10=2.8+u equation:


Simplifying
7.9u + -2 + -3.2u + -10 = 2.8 + u

Reorder the terms:
-2 + -10 + 7.9u + -3.2u = 2.8 + u

Combine like terms: -2 + -10 = -12
-12 + 7.9u + -3.2u = 2.8 + u

Combine like terms: 7.9u + -3.2u = 4.7u
-12 + 4.7u = 2.8 + u

Solving
-12 + 4.7u = 2.8 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-12 + 4.7u + -1u = 2.8 + u + -1u

Combine like terms: 4.7u + -1u = 3.7u
-12 + 3.7u = 2.8 + u + -1u

Combine like terms: u + -1u = 0
-12 + 3.7u = 2.8 + 0
-12 + 3.7u = 2.8

Add '12' to each side of the equation.
-12 + 12 + 3.7u = 2.8 + 12

Combine like terms: -12 + 12 = 0
0 + 3.7u = 2.8 + 12
3.7u = 2.8 + 12

Combine like terms: 2.8 + 12 = 14.8
3.7u = 14.8

Divide each side by '3.7'.
u = 4

Simplifying
u = 4

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