5u+3(u+4)=20

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Solution for 5u+3(u+4)=20 equation:


Simplifying
5u + 3(u + 4) = 20

Reorder the terms:
5u + 3(4 + u) = 20
5u + (4 * 3 + u * 3) = 20
5u + (12 + 3u) = 20

Reorder the terms:
12 + 5u + 3u = 20

Combine like terms: 5u + 3u = 8u
12 + 8u = 20

Solving
12 + 8u = 20

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 + 8u = 20 + -12

Combine like terms: 12 + -12 = 0
0 + 8u = 20 + -12
8u = 20 + -12

Combine like terms: 20 + -12 = 8
8u = 8

Divide each side by '8'.
u = 1

Simplifying
u = 1

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