2r-r+7+4r=

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Solution for 2r-r+7+4r= equation:


Simplifying
2r + -1r + 7 + 4r = 0

Reorder the terms:
7 + 2r + -1r + 4r = 0

Combine like terms: 2r + -1r = 1r
7 + 1r + 4r = 0

Combine like terms: 1r + 4r = 5r
7 + 5r = 0

Solving
7 + 5r = 0

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 5r = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 5r = 0 + -7
5r = 0 + -7

Combine like terms: 0 + -7 = -7
5r = -7

Divide each side by '5'.
r = -1.4

Simplifying
r = -1.4

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