3r+8=4+r+4r

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Solution for 3r+8=4+r+4r equation:


Simplifying
3r + 8 = 4 + r + 4r

Reorder the terms:
8 + 3r = 4 + r + 4r

Combine like terms: r + 4r = 5r
8 + 3r = 4 + 5r

Solving
8 + 3r = 4 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
8 + 3r + -5r = 4 + 5r + -5r

Combine like terms: 3r + -5r = -2r
8 + -2r = 4 + 5r + -5r

Combine like terms: 5r + -5r = 0
8 + -2r = 4 + 0
8 + -2r = 4

Add '-8' to each side of the equation.
8 + -8 + -2r = 4 + -8

Combine like terms: 8 + -8 = 0
0 + -2r = 4 + -8
-2r = 4 + -8

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

Divide each side by '-2'.
r = 2

Simplifying
r = 2

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