2(7u-3)-(u+9)-3(2u+1)=24

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Solution for 2(7u-3)-(u+9)-3(2u+1)=24 equation:


Simplifying
2(7u + -3) + -1(u + 9) + -3(2u + 1) = 24

Reorder the terms:
2(-3 + 7u) + -1(u + 9) + -3(2u + 1) = 24
(-3 * 2 + 7u * 2) + -1(u + 9) + -3(2u + 1) = 24
(-6 + 14u) + -1(u + 9) + -3(2u + 1) = 24

Reorder the terms:
-6 + 14u + -1(9 + u) + -3(2u + 1) = 24
-6 + 14u + (9 * -1 + u * -1) + -3(2u + 1) = 24
-6 + 14u + (-9 + -1u) + -3(2u + 1) = 24

Reorder the terms:
-6 + 14u + -9 + -1u + -3(1 + 2u) = 24
-6 + 14u + -9 + -1u + (1 * -3 + 2u * -3) = 24
-6 + 14u + -9 + -1u + (-3 + -6u) = 24

Reorder the terms:
-6 + -9 + -3 + 14u + -1u + -6u = 24

Combine like terms: -6 + -9 = -15
-15 + -3 + 14u + -1u + -6u = 24

Combine like terms: -15 + -3 = -18
-18 + 14u + -1u + -6u = 24

Combine like terms: 14u + -1u = 13u
-18 + 13u + -6u = 24

Combine like terms: 13u + -6u = 7u
-18 + 7u = 24

Solving
-18 + 7u = 24

Solving for variable 'u'.

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

Add '18' to each side of the equation.
-18 + 18 + 7u = 24 + 18

Combine like terms: -18 + 18 = 0
0 + 7u = 24 + 18
7u = 24 + 18

Combine like terms: 24 + 18 = 42
7u = 42

Divide each side by '7'.
u = 6

Simplifying
u = 6

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