3(u-7)=8u+1

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Solution for 3(u-7)=8u+1 equation:


Simplifying
3(u + -7) = 8u + 1

Reorder the terms:
3(-7 + u) = 8u + 1
(-7 * 3 + u * 3) = 8u + 1
(-21 + 3u) = 8u + 1

Reorder the terms:
-21 + 3u = 1 + 8u

Solving
-21 + 3u = 1 + 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.
-21 + 3u + -8u = 1 + 8u + -8u

Combine like terms: 3u + -8u = -5u
-21 + -5u = 1 + 8u + -8u

Combine like terms: 8u + -8u = 0
-21 + -5u = 1 + 0
-21 + -5u = 1

Add '21' to each side of the equation.
-21 + 21 + -5u = 1 + 21

Combine like terms: -21 + 21 = 0
0 + -5u = 1 + 21
-5u = 1 + 21

Combine like terms: 1 + 21 = 22
-5u = 22

Divide each side by '-5'.
u = -4.4

Simplifying
u = -4.4

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