7(5+3r)=203

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Solution for 7(5+3r)=203 equation: 


Simplifying
7(5 + 3r) = 203
(5 * 7 + 3r * 7) = 203
(35 + 21r) = 203

Solving
35 + 21r = 203

Solving for variable 'r'.

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

Add '-35' to each side of the equation.
35 + -35 + 21r = 203 + -35

Combine like terms: 35 + -35 = 0
0 + 21r = 203 + -35
21r = 203 + -35

Combine like terms: 203 + -35 = 168
21r = 168

Divide each side by '21'.
r = 8

Simplifying
r = 8

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