3r-r+2(r+4)=24

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Solution for 3r-r+2(r+4)=24 equation:


Simplifying
3r + -1r + 2(r + 4) = 24

Reorder the terms:
3r + -1r + 2(4 + r) = 24
3r + -1r + (4 * 2 + r * 2) = 24
3r + -1r + (8 + 2r) = 24

Reorder the terms:
8 + 3r + -1r + 2r = 24

Combine like terms: 3r + -1r = 2r
8 + 2r + 2r = 24

Combine like terms: 2r + 2r = 4r
8 + 4r = 24

Solving
8 + 4r = 24

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 + 4r = 24 + -8

Combine like terms: 8 + -8 = 0
0 + 4r = 24 + -8
4r = 24 + -8

Combine like terms: 24 + -8 = 16
4r = 16

Divide each side by '4'.
r = 4

Simplifying
r = 4

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