40=5r-5

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Solution for 40=5r-5 equation:


Simplifying
40 = 5r + -5

Reorder the terms:
40 = -5 + 5r

Solving
40 = -5 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
40 + -5r = -5 + 5r + -5r

Combine like terms: 5r + -5r = 0
40 + -5r = -5 + 0
40 + -5r = -5

Add '-40' to each side of the equation.
40 + -40 + -5r = -5 + -40

Combine like terms: 40 + -40 = 0
0 + -5r = -5 + -40
-5r = -5 + -40

Combine like terms: -5 + -40 = -45
-5r = -45

Divide each side by '-5'.
r = 9

Simplifying
r = 9

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