-25=-4r+5

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Solution for -25=-4r+5 equation:


Simplifying
-25 = -4r + 5

Reorder the terms:
-25 = 5 + -4r

Solving
-25 = 5 + -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 + 4r = 5 + -4r + 4r

Combine like terms: -4r + 4r = 0
-25 + 4r = 5 + 0
-25 + 4r = 5

Add '25' to each side of the equation.
-25 + 25 + 4r = 5 + 25

Combine like terms: -25 + 25 = 0
0 + 4r = 5 + 25
4r = 5 + 25

Combine like terms: 5 + 25 = 30
4r = 30

Divide each side by '4'.
r = 7.5

Simplifying
r = 7.5

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