8+r-4=2r-2

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


Simplifying
8 + r + -4 = 2r + -2

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

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

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

Solving
4 + r = -2 + 2r

Solving for variable 'r'.

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

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

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

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

Add '-4' to each side of the equation.
4 + -4 + -1r = -2 + -4

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

Combine like terms: -2 + -4 = -6
-1r = -6

Divide each side by '-1'.
r = 6

Simplifying
r = 6

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