4(r-3)=12

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Solution for 4(r-3)=12 equation: 


Simplifying
4(r + -3) = 12

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

Solving
-12 + 4r = 12

Solving for variable 'r'.

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

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

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

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

Divide each side by '4'.
r = 6

Simplifying
r = 6

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