2u+84=4u+72

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Solution for 2u+84=4u+72 equation:


Simplifying
2u + 84 = 4u + 72

Reorder the terms:
84 + 2u = 4u + 72

Reorder the terms:
84 + 2u = 72 + 4u

Solving
84 + 2u = 72 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
84 + 2u + -4u = 72 + 4u + -4u

Combine like terms: 2u + -4u = -2u
84 + -2u = 72 + 4u + -4u

Combine like terms: 4u + -4u = 0
84 + -2u = 72 + 0
84 + -2u = 72

Add '-84' to each side of the equation.
84 + -84 + -2u = 72 + -84

Combine like terms: 84 + -84 = 0
0 + -2u = 72 + -84
-2u = 72 + -84

Combine like terms: 72 + -84 = -12
-2u = -12

Divide each side by '-2'.
u = 6

Simplifying
u = 6

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