4u+3=7u-15

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Solution for 4u+3=7u-15 equation:


Simplifying
4u + 3 = 7u + -15

Reorder the terms:
3 + 4u = 7u + -15

Reorder the terms:
3 + 4u = -15 + 7u

Solving
3 + 4u = -15 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
3 + 4u + -7u = -15 + 7u + -7u

Combine like terms: 4u + -7u = -3u
3 + -3u = -15 + 7u + -7u

Combine like terms: 7u + -7u = 0
3 + -3u = -15 + 0
3 + -3u = -15

Add '-3' to each side of the equation.
3 + -3 + -3u = -15 + -3

Combine like terms: 3 + -3 = 0
0 + -3u = -15 + -3
-3u = -15 + -3

Combine like terms: -15 + -3 = -18
-3u = -18

Divide each side by '-3'.
u = 6

Simplifying
u = 6

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