(3r+2)-4(6r+8)=

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Solution for (3r+2)-4(6r+8)= equation:


Simplifying
(3r + 2) + -4(6r + 8) = 0

Reorder the terms:
(2 + 3r) + -4(6r + 8) = 0

Remove parenthesis around (2 + 3r)
2 + 3r + -4(6r + 8) = 0

Reorder the terms:
2 + 3r + -4(8 + 6r) = 0
2 + 3r + (8 * -4 + 6r * -4) = 0
2 + 3r + (-32 + -24r) = 0

Reorder the terms:
2 + -32 + 3r + -24r = 0

Combine like terms: 2 + -32 = -30
-30 + 3r + -24r = 0

Combine like terms: 3r + -24r = -21r
-30 + -21r = 0

Solving
-30 + -21r = 0

Solving for variable 'r'.

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

Add '30' to each side of the equation.
-30 + 30 + -21r = 0 + 30

Combine like terms: -30 + 30 = 0
0 + -21r = 0 + 30
-21r = 0 + 30

Combine like terms: 0 + 30 = 30
-21r = 30

Divide each side by '-21'.
r = -1.428571429

Simplifying
r = -1.428571429

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