3-4r=5r+12

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Solution for 3-4r=5r+12 equation:


Simplifying
3 + -4r = 5r + 12

Reorder the terms:
3 + -4r = 12 + 5r

Solving
3 + -4r = 12 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
3 + -4r + -5r = 12 + 5r + -5r

Combine like terms: -4r + -5r = -9r
3 + -9r = 12 + 5r + -5r

Combine like terms: 5r + -5r = 0
3 + -9r = 12 + 0
3 + -9r = 12

Add '-3' to each side of the equation.
3 + -3 + -9r = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -9r = 12 + -3
-9r = 12 + -3

Combine like terms: 12 + -3 = 9
-9r = 9

Divide each side by '-9'.
r = -1

Simplifying
r = -1

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