4u+42=7(u+9)

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Solution for 4u+42=7(u+9) equation:


Simplifying
4u + 42 = 7(u + 9)

Reorder the terms:
42 + 4u = 7(u + 9)

Reorder the terms:
42 + 4u = 7(9 + u)
42 + 4u = (9 * 7 + u * 7)
42 + 4u = (63 + 7u)

Solving
42 + 4u = 63 + 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.
42 + 4u + -7u = 63 + 7u + -7u

Combine like terms: 4u + -7u = -3u
42 + -3u = 63 + 7u + -7u

Combine like terms: 7u + -7u = 0
42 + -3u = 63 + 0
42 + -3u = 63

Add '-42' to each side of the equation.
42 + -42 + -3u = 63 + -42

Combine like terms: 42 + -42 = 0
0 + -3u = 63 + -42
-3u = 63 + -42

Combine like terms: 63 + -42 = 21
-3u = 21

Divide each side by '-3'.
u = -7

Simplifying
u = -7

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