25=8r-7

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Solution for 25=8r-7 equation:


Simplifying
25 = 8r + -7

Reorder the terms:
25 = -7 + 8r

Solving
25 = -7 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
25 + -8r = -7 + 8r + -8r

Combine like terms: 8r + -8r = 0
25 + -8r = -7 + 0
25 + -8r = -7

Add '-25' to each side of the equation.
25 + -25 + -8r = -7 + -25

Combine like terms: 25 + -25 = 0
0 + -8r = -7 + -25
-8r = -7 + -25

Combine like terms: -7 + -25 = -32
-8r = -32

Divide each side by '-8'.
r = 4

Simplifying
r = 4

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