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

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Solution for 3(4r+1)-4(r-2)= equation:


Simplifying
3(4r + 1) + -4(r + -2) = 0

Reorder the terms:
3(1 + 4r) + -4(r + -2) = 0
(1 * 3 + 4r * 3) + -4(r + -2) = 0
(3 + 12r) + -4(r + -2) = 0

Reorder the terms:
3 + 12r + -4(-2 + r) = 0
3 + 12r + (-2 * -4 + r * -4) = 0
3 + 12r + (8 + -4r) = 0

Reorder the terms:
3 + 8 + 12r + -4r = 0

Combine like terms: 3 + 8 = 11
11 + 12r + -4r = 0

Combine like terms: 12r + -4r = 8r
11 + 8r = 0

Solving
11 + 8r = 0

Solving for variable 'r'.

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

Add '-11' to each side of the equation.
11 + -11 + 8r = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 8r = 0 + -11
8r = 0 + -11

Combine like terms: 0 + -11 = -11
8r = -11

Divide each side by '8'.
r = -1.375

Simplifying
r = -1.375

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