-2r-5=-7r-25

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Solution for -2r-5=-7r-25 equation:


Simplifying
-2r + -5 = -7r + -25

Reorder the terms:
-5 + -2r = -7r + -25

Reorder the terms:
-5 + -2r = -25 + -7r

Solving
-5 + -2r = -25 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
-5 + -2r + 7r = -25 + -7r + 7r

Combine like terms: -2r + 7r = 5r
-5 + 5r = -25 + -7r + 7r

Combine like terms: -7r + 7r = 0
-5 + 5r = -25 + 0
-5 + 5r = -25

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

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

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

Divide each side by '5'.
r = -4

Simplifying
r = -4

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