4(3r-2)=100

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Solution for 4(3r-2)=100 equation: 


Simplifying
4(3r + -2) = 100

Reorder the terms:
4(-2 + 3r) = 100
(-2 * 4 + 3r * 4) = 100
(-8 + 12r) = 100

Solving
-8 + 12r = 100

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + 12r = 100 + 8

Combine like terms: -8 + 8 = 0
0 + 12r = 100 + 8
12r = 100 + 8

Combine like terms: 100 + 8 = 108
12r = 108

Divide each side by '12'.
r = 9

Simplifying
r = 9

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