8r+2(7-r)=38

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Solution for 8r+2(7-r)=38 equation:


Simplifying
8r + 2(7 + -1r) = 38
8r + (7 * 2 + -1r * 2) = 38
8r + (14 + -2r) = 38

Reorder the terms:
14 + 8r + -2r = 38

Combine like terms: 8r + -2r = 6r
14 + 6r = 38

Solving
14 + 6r = 38

Solving for variable 'r'.

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

Add '-14' to each side of the equation.
14 + -14 + 6r = 38 + -14

Combine like terms: 14 + -14 = 0
0 + 6r = 38 + -14
6r = 38 + -14

Combine like terms: 38 + -14 = 24
6r = 24

Divide each side by '6'.
r = 4

Simplifying
r = 4

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