2r-4r+7=

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


Simplifying
2r + -4r + 7 = 0

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

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

Solving
7 + -2r = 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 + -2r = 0 + -7

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

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

Divide each side by '-2'.
r = 3.5

Simplifying
r = 3.5

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