2(u-4)-7=-3(-9u+9)-7u

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Solution for 2(u-4)-7=-3(-9u+9)-7u equation:


Simplifying
2(u + -4) + -7 = -3(-9u + 9) + -7u

Reorder the terms:
2(-4 + u) + -7 = -3(-9u + 9) + -7u
(-4 * 2 + u * 2) + -7 = -3(-9u + 9) + -7u
(-8 + 2u) + -7 = -3(-9u + 9) + -7u

Reorder the terms:
-8 + -7 + 2u = -3(-9u + 9) + -7u

Combine like terms: -8 + -7 = -15
-15 + 2u = -3(-9u + 9) + -7u

Reorder the terms:
-15 + 2u = -3(9 + -9u) + -7u
-15 + 2u = (9 * -3 + -9u * -3) + -7u
-15 + 2u = (-27 + 27u) + -7u

Combine like terms: 27u + -7u = 20u
-15 + 2u = -27 + 20u

Solving
-15 + 2u = -27 + 20u

Solving for variable 'u'.

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

Add '-20u' to each side of the equation.
-15 + 2u + -20u = -27 + 20u + -20u

Combine like terms: 2u + -20u = -18u
-15 + -18u = -27 + 20u + -20u

Combine like terms: 20u + -20u = 0
-15 + -18u = -27 + 0
-15 + -18u = -27

Add '15' to each side of the equation.
-15 + 15 + -18u = -27 + 15

Combine like terms: -15 + 15 = 0
0 + -18u = -27 + 15
-18u = -27 + 15

Combine like terms: -27 + 15 = -12
-18u = -12

Divide each side by '-18'.
u = 0.6666666667

Simplifying
u = 0.6666666667

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