12(3r-1)=11(3r+18)

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Solution for 12(3r-1)=11(3r+18) equation:


Simplifying
12(3r + -1) = 11(3r + 18)

Reorder the terms:
12(-1 + 3r) = 11(3r + 18)
(-1 * 12 + 3r * 12) = 11(3r + 18)
(-12 + 36r) = 11(3r + 18)

Reorder the terms:
-12 + 36r = 11(18 + 3r)
-12 + 36r = (18 * 11 + 3r * 11)
-12 + 36r = (198 + 33r)

Solving
-12 + 36r = 198 + 33r

Solving for variable 'r'.

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

Add '-33r' to each side of the equation.
-12 + 36r + -33r = 198 + 33r + -33r

Combine like terms: 36r + -33r = 3r
-12 + 3r = 198 + 33r + -33r

Combine like terms: 33r + -33r = 0
-12 + 3r = 198 + 0
-12 + 3r = 198

Add '12' to each side of the equation.
-12 + 12 + 3r = 198 + 12

Combine like terms: -12 + 12 = 0
0 + 3r = 198 + 12
3r = 198 + 12

Combine like terms: 198 + 12 = 210
3r = 210

Divide each side by '3'.
r = 70

Simplifying
r = 70

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