3(u-4)=8u-7

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Solution for 3(u-4)=8u-7 equation:


Simplifying
3(u + -4) = 8u + -7

Reorder the terms:
3(-4 + u) = 8u + -7
(-4 * 3 + u * 3) = 8u + -7
(-12 + 3u) = 8u + -7

Reorder the terms:
-12 + 3u = -7 + 8u

Solving
-12 + 3u = -7 + 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.
-12 + 3u + -8u = -7 + 8u + -8u

Combine like terms: 3u + -8u = -5u
-12 + -5u = -7 + 8u + -8u

Combine like terms: 8u + -8u = 0
-12 + -5u = -7 + 0
-12 + -5u = -7

Add '12' to each side of the equation.
-12 + 12 + -5u = -7 + 12

Combine like terms: -12 + 12 = 0
0 + -5u = -7 + 12
-5u = -7 + 12

Combine like terms: -7 + 12 = 5
-5u = 5

Divide each side by '-5'.
u = -1

Simplifying
u = -1

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