2r+12=3r+8

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Solution for 2r+12=3r+8 equation:


Simplifying
2r + 12 = 3r + 8

Reorder the terms:
12 + 2r = 3r + 8

Reorder the terms:
12 + 2r = 8 + 3r

Solving
12 + 2r = 8 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
12 + 2r + -3r = 8 + 3r + -3r

Combine like terms: 2r + -3r = -1r
12 + -1r = 8 + 3r + -3r

Combine like terms: 3r + -3r = 0
12 + -1r = 8 + 0
12 + -1r = 8

Add '-12' to each side of the equation.
12 + -12 + -1r = 8 + -12

Combine like terms: 12 + -12 = 0
0 + -1r = 8 + -12
-1r = 8 + -12

Combine like terms: 8 + -12 = -4
-1r = -4

Divide each side by '-1'.
r = 4

Simplifying
r = 4

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