3u+4(u-3)=23

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Solution for 3u+4(u-3)=23 equation:


Simplifying
3u + 4(u + -3) = 23

Reorder the terms:
3u + 4(-3 + u) = 23
3u + (-3 * 4 + u * 4) = 23
3u + (-12 + 4u) = 23

Reorder the terms:
-12 + 3u + 4u = 23

Combine like terms: 3u + 4u = 7u
-12 + 7u = 23

Solving
-12 + 7u = 23

Solving for variable 'u'.

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

Add '12' to each side of the equation.
-12 + 12 + 7u = 23 + 12

Combine like terms: -12 + 12 = 0
0 + 7u = 23 + 12
7u = 23 + 12

Combine like terms: 23 + 12 = 35
7u = 35

Divide each side by '7'.
u = 5

Simplifying
u = 5

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