3r+8=4r-2

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Solution for 3r+8=4r-2 equation:


Simplifying
3r + 8 = 4r + -2

Reorder the terms:
8 + 3r = 4r + -2

Reorder the terms:
8 + 3r = -2 + 4r

Solving
8 + 3r = -2 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
8 + 3r + -4r = -2 + 4r + -4r

Combine like terms: 3r + -4r = -1r
8 + -1r = -2 + 4r + -4r

Combine like terms: 4r + -4r = 0
8 + -1r = -2 + 0
8 + -1r = -2

Add '-8' to each side of the equation.
8 + -8 + -1r = -2 + -8

Combine like terms: 8 + -8 = 0
0 + -1r = -2 + -8
-1r = -2 + -8

Combine like terms: -2 + -8 = -10
-1r = -10

Divide each side by '-1'.
r = 10

Simplifying
r = 10

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