3r-4=5r+12

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


Simplifying
3r + -4 = 5r + 12

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

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

Solving
-4 + 3r = 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.
-4 + 3r + -5r = 12 + 5r + -5r

Combine like terms: 3r + -5r = -2r
-4 + -2r = 12 + 5r + -5r

Combine like terms: 5r + -5r = 0
-4 + -2r = 12 + 0
-4 + -2r = 12

Add '4' to each side of the equation.
-4 + 4 + -2r = 12 + 4

Combine like terms: -4 + 4 = 0
0 + -2r = 12 + 4
-2r = 12 + 4

Combine like terms: 12 + 4 = 16
-2r = 16

Divide each side by '-2'.
r = -8

Simplifying
r = -8

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