2r-4r=4-r

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Solution for 2r-4r=4-r equation:


Simplifying
2r + -4r = 4 + -1r

Combine like terms: 2r + -4r = -2r
-2r = 4 + -1r

Solving
-2r = 4 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-2r + r = 4 + -1r + r

Combine like terms: -2r + r = -1r
-1r = 4 + -1r + r

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

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

Simplifying
r = -4

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