u^2-13u+42=u^2-8u+16

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Solution for u^2-13u+42=u^2-8u+16 equation:


Simplifying
u2 + -13u + 42 = u2 + -8u + 16

Reorder the terms:
42 + -13u + u2 = u2 + -8u + 16

Reorder the terms:
42 + -13u + u2 = 16 + -8u + u2

Add '-1u2' to each side of the equation.
42 + -13u + u2 + -1u2 = 16 + -8u + u2 + -1u2

Combine like terms: u2 + -1u2 = 0
42 + -13u + 0 = 16 + -8u + u2 + -1u2
42 + -13u = 16 + -8u + u2 + -1u2

Combine like terms: u2 + -1u2 = 0
42 + -13u = 16 + -8u + 0
42 + -13u = 16 + -8u

Solving
42 + -13u = 16 + -8u

Solving for variable 'u'.

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

Add '8u' to each side of the equation.
42 + -13u + 8u = 16 + -8u + 8u

Combine like terms: -13u + 8u = -5u
42 + -5u = 16 + -8u + 8u

Combine like terms: -8u + 8u = 0
42 + -5u = 16 + 0
42 + -5u = 16

Add '-42' to each side of the equation.
42 + -42 + -5u = 16 + -42

Combine like terms: 42 + -42 = 0
0 + -5u = 16 + -42
-5u = 16 + -42

Combine like terms: 16 + -42 = -26
-5u = -26

Divide each side by '-5'.
u = 5.2

Simplifying
u = 5.2

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