-3u+7=9u+49

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Solution for -3u+7=9u+49 equation:


Simplifying
-3u + 7 = 9u + 49

Reorder the terms:
7 + -3u = 9u + 49

Reorder the terms:
7 + -3u = 49 + 9u

Solving
7 + -3u = 49 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
7 + -3u + -9u = 49 + 9u + -9u

Combine like terms: -3u + -9u = -12u
7 + -12u = 49 + 9u + -9u

Combine like terms: 9u + -9u = 0
7 + -12u = 49 + 0
7 + -12u = 49

Add '-7' to each side of the equation.
7 + -7 + -12u = 49 + -7

Combine like terms: 7 + -7 = 0
0 + -12u = 49 + -7
-12u = 49 + -7

Combine like terms: 49 + -7 = 42
-12u = 42

Divide each side by '-12'.
u = -3.5

Simplifying
u = -3.5

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