12-5r-2+4r=

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Solution for 12-5r-2+4r= equation:


Simplifying
12 + -5r + -2 + 4r = 0

Reorder the terms:
12 + -2 + -5r + 4r = 0

Combine like terms: 12 + -2 = 10
10 + -5r + 4r = 0

Combine like terms: -5r + 4r = -1r
10 + -1r = 0

Solving
10 + -1r = 0

Solving for variable 'r'.

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

Add '-10' to each side of the equation.
10 + -10 + -1r = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -1r = 0 + -10
-1r = 0 + -10

Combine like terms: 0 + -10 = -10
-1r = -10

Divide each side by '-1'.
r = 10

Simplifying
r = 10

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