3(u-7)-9=-4(-5u+8)-3u

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Solution for 3(u-7)-9=-4(-5u+8)-3u equation:


Simplifying
3(u + -7) + -9 = -4(-5u + 8) + -3u

Reorder the terms:
3(-7 + u) + -9 = -4(-5u + 8) + -3u
(-7 * 3 + u * 3) + -9 = -4(-5u + 8) + -3u
(-21 + 3u) + -9 = -4(-5u + 8) + -3u

Reorder the terms:
-21 + -9 + 3u = -4(-5u + 8) + -3u

Combine like terms: -21 + -9 = -30
-30 + 3u = -4(-5u + 8) + -3u

Reorder the terms:
-30 + 3u = -4(8 + -5u) + -3u
-30 + 3u = (8 * -4 + -5u * -4) + -3u
-30 + 3u = (-32 + 20u) + -3u

Combine like terms: 20u + -3u = 17u
-30 + 3u = -32 + 17u

Solving
-30 + 3u = -32 + 17u

Solving for variable 'u'.

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

Add '-17u' to each side of the equation.
-30 + 3u + -17u = -32 + 17u + -17u

Combine like terms: 3u + -17u = -14u
-30 + -14u = -32 + 17u + -17u

Combine like terms: 17u + -17u = 0
-30 + -14u = -32 + 0
-30 + -14u = -32

Add '30' to each side of the equation.
-30 + 30 + -14u = -32 + 30

Combine like terms: -30 + 30 = 0
0 + -14u = -32 + 30
-14u = -32 + 30

Combine like terms: -32 + 30 = -2
-14u = -2

Divide each side by '-14'.
u = 0.1428571429

Simplifying
u = 0.1428571429

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