3r-25=-20+4r

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Solution for 3r-25=-20+4r equation:


Simplifying
3r + -25 = -20 + 4r

Reorder the terms:
-25 + 3r = -20 + 4r

Solving
-25 + 3r = -20 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-25 + 3r + -4r = -20 + 4r + -4r

Combine like terms: 3r + -4r = -1r
-25 + -1r = -20 + 4r + -4r

Combine like terms: 4r + -4r = 0
-25 + -1r = -20 + 0
-25 + -1r = -20

Add '25' to each side of the equation.
-25 + 25 + -1r = -20 + 25

Combine like terms: -25 + 25 = 0
0 + -1r = -20 + 25
-1r = -20 + 25

Combine like terms: -20 + 25 = 5
-1r = 5

Divide each side by '-1'.
r = -5

Simplifying
r = -5

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