5(u-5)-7u=-21

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Solution for 5(u-5)-7u=-21 equation:


Simplifying
5(u + -5) + -7u = -21

Reorder the terms:
5(-5 + u) + -7u = -21
(-5 * 5 + u * 5) + -7u = -21
(-25 + 5u) + -7u = -21

Combine like terms: 5u + -7u = -2u
-25 + -2u = -21

Solving
-25 + -2u = -21

Solving for variable 'u'.

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

Add '25' to each side of the equation.
-25 + 25 + -2u = -21 + 25

Combine like terms: -25 + 25 = 0
0 + -2u = -21 + 25
-2u = -21 + 25

Combine like terms: -21 + 25 = 4
-2u = 4

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

Simplifying
u = -2

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