7(r-1)=7

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Solution for 7(r-1)=7 equation: 


Simplifying
7(r + -1) = 7

Reorder the terms:
7(-1 + r) = 7
(-1 * 7 + r * 7) = 7
(-7 + 7r) = 7

Solving
-7 + 7r = 7

Solving for variable 'r'.

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

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

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

Combine like terms: 7 + 7 = 14
7r = 14

Divide each side by '7'.
r = 2

Simplifying
r = 2

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