(4r-2)-(3r+2)=8

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


Simplifying
(4r + -2) + -1(3r + 2) = 8

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

Remove parenthesis around (-2 + 4r)
-2 + 4r + -1(3r + 2) = 8

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

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

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

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

Solving
-4 + 1r = 8

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 1r = 8 + 4

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

Combine like terms: 8 + 4 = 12
1r = 12

Divide each side by '1'.
r = 12

Simplifying
r = 12

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