4[3r-2]=4-12r

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Solution for 4[3r-2]=4-12r equation:


Simplifying
4[3r + -2] = 4 + -12r

Reorder the terms:
4[-2 + 3r] = 4 + -12r
[-2 * 4 + 3r * 4] = 4 + -12r
[-8 + 12r] = 4 + -12r

Solving
-8 + 12r = 4 + -12r

Solving for variable 'r'.

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

Add '12r' to each side of the equation.
-8 + 12r + 12r = 4 + -12r + 12r

Combine like terms: 12r + 12r = 24r
-8 + 24r = 4 + -12r + 12r

Combine like terms: -12r + 12r = 0
-8 + 24r = 4 + 0
-8 + 24r = 4

Add '8' to each side of the equation.
-8 + 8 + 24r = 4 + 8

Combine like terms: -8 + 8 = 0
0 + 24r = 4 + 8
24r = 4 + 8

Combine like terms: 4 + 8 = 12
24r = 12

Divide each side by '24'.
r = 0.5

Simplifying
r = 0.5

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