4(u-3)+5(u-7)=2(u+8)

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Solution for 4(u-3)+5(u-7)=2(u+8) equation:


Simplifying
4(u + -3) + 5(u + -7) = 2(u + 8)

Reorder the terms:
4(-3 + u) + 5(u + -7) = 2(u + 8)
(-3 * 4 + u * 4) + 5(u + -7) = 2(u + 8)
(-12 + 4u) + 5(u + -7) = 2(u + 8)

Reorder the terms:
-12 + 4u + 5(-7 + u) = 2(u + 8)
-12 + 4u + (-7 * 5 + u * 5) = 2(u + 8)
-12 + 4u + (-35 + 5u) = 2(u + 8)

Reorder the terms:
-12 + -35 + 4u + 5u = 2(u + 8)

Combine like terms: -12 + -35 = -47
-47 + 4u + 5u = 2(u + 8)

Combine like terms: 4u + 5u = 9u
-47 + 9u = 2(u + 8)

Reorder the terms:
-47 + 9u = 2(8 + u)
-47 + 9u = (8 * 2 + u * 2)
-47 + 9u = (16 + 2u)

Solving
-47 + 9u = 16 + 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.
-47 + 9u + -2u = 16 + 2u + -2u

Combine like terms: 9u + -2u = 7u
-47 + 7u = 16 + 2u + -2u

Combine like terms: 2u + -2u = 0
-47 + 7u = 16 + 0
-47 + 7u = 16

Add '47' to each side of the equation.
-47 + 47 + 7u = 16 + 47

Combine like terms: -47 + 47 = 0
0 + 7u = 16 + 47
7u = 16 + 47

Combine like terms: 16 + 47 = 63
7u = 63

Divide each side by '7'.
u = 9

Simplifying
u = 9

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