3r+5(r-1)=27

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Solution for 3r+5(r-1)=27 equation:


Simplifying
3r + 5(r + -1) = 27

Reorder the terms:
3r + 5(-1 + r) = 27
3r + (-1 * 5 + r * 5) = 27
3r + (-5 + 5r) = 27

Reorder the terms:
-5 + 3r + 5r = 27

Combine like terms: 3r + 5r = 8r
-5 + 8r = 27

Solving
-5 + 8r = 27

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 8r = 27 + 5

Combine like terms: -5 + 5 = 0
0 + 8r = 27 + 5
8r = 27 + 5

Combine like terms: 27 + 5 = 32
8r = 32

Divide each side by '8'.
r = 4

Simplifying
r = 4

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