5r+2(4-r)=38

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Solution for 5r+2(4-r)=38 equation: 


Simplifying
5r + 2(4 + -1r) = 38
5r + (4 * 2 + -1r * 2) = 38
5r + (8 + -2r) = 38

Reorder the terms:
8 + 5r + -2r = 38

Combine like terms: 5r + -2r = 3r
8 + 3r = 38

Solving
8 + 3r = 38

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 3r = 38 + -8

Combine like terms: 8 + -8 = 0
0 + 3r = 38 + -8
3r = 38 + -8

Combine like terms: 38 + -8 = 30
3r = 30

Divide each side by '3'.
r = 10

Simplifying
r = 10

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