3(u-7)-7u=-17

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Solution for 3(u-7)-7u=-17 equation:


Simplifying
3(u + -7) + -7u = -17

Reorder the terms:
3(-7 + u) + -7u = -17
(-7 * 3 + u * 3) + -7u = -17
(-21 + 3u) + -7u = -17

Combine like terms: 3u + -7u = -4u
-21 + -4u = -17

Solving
-21 + -4u = -17

Solving for variable 'u'.

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

Add '21' to each side of the equation.
-21 + 21 + -4u = -17 + 21

Combine like terms: -21 + 21 = 0
0 + -4u = -17 + 21
-4u = -17 + 21

Combine like terms: -17 + 21 = 4
-4u = 4

Divide each side by '-4'.
u = -1

Simplifying
u = -1

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