-3(-4u+7)-u=2(u-7)-4

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Solution for -3(-4u+7)-u=2(u-7)-4 equation:


Simplifying
-3(-4u + 7) + -1u = 2(u + -7) + -4

Reorder the terms:
-3(7 + -4u) + -1u = 2(u + -7) + -4
(7 * -3 + -4u * -3) + -1u = 2(u + -7) + -4
(-21 + 12u) + -1u = 2(u + -7) + -4

Combine like terms: 12u + -1u = 11u
-21 + 11u = 2(u + -7) + -4

Reorder the terms:
-21 + 11u = 2(-7 + u) + -4
-21 + 11u = (-7 * 2 + u * 2) + -4
-21 + 11u = (-14 + 2u) + -4

Reorder the terms:
-21 + 11u = -14 + -4 + 2u

Combine like terms: -14 + -4 = -18
-21 + 11u = -18 + 2u

Solving
-21 + 11u = -18 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
-21 + 11u + -2u = -18 + 2u + -2u

Combine like terms: 11u + -2u = 9u
-21 + 9u = -18 + 2u + -2u

Combine like terms: 2u + -2u = 0
-21 + 9u = -18 + 0
-21 + 9u = -18

Add '21' to each side of the equation.
-21 + 21 + 9u = -18 + 21

Combine like terms: -21 + 21 = 0
0 + 9u = -18 + 21
9u = -18 + 21

Combine like terms: -18 + 21 = 3
9u = 3

Divide each side by '9'.
u = 0.3333333333

Simplifying
u = 0.3333333333

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