12(x-1)-3(9x-20)=4

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Solution for 12(x-1)-3(9x-20)=4 equation: 


Simplifying
12(x + -1) + -3(9x + -20) = 4

Reorder the terms:
12(-1 + x) + -3(9x + -20) = 4
(-1 * 12 + x * 12) + -3(9x + -20) = 4
(-12 + 12x) + -3(9x + -20) = 4

Reorder the terms:
-12 + 12x + -3(-20 + 9x) = 4
-12 + 12x + (-20 * -3 + 9x * -3) = 4
-12 + 12x + (60 + -27x) = 4

Reorder the terms:
-12 + 60 + 12x + -27x = 4

Combine like terms: -12 + 60 = 48
48 + 12x + -27x = 4

Combine like terms: 12x + -27x = -15x
48 + -15x = 4

Solving
48 + -15x = 4

Solving for variable 'x'.

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

Add '-48' to each side of the equation.
48 + -48 + -15x = 4 + -48

Combine like terms: 48 + -48 = 0
0 + -15x = 4 + -48
-15x = 4 + -48

Combine like terms: 4 + -48 = -44
-15x = -44

Divide each side by '-15'.
x = 2.933333333

Simplifying
x = 2.933333333

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