3(4r-3)-4(r-3)=

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Solution for 3(4r-3)-4(r-3)= equation:


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

Reorder the terms:
3(-3 + 4r) + -4(r + -3) = 0
(-3 * 3 + 4r * 3) + -4(r + -3) = 0
(-9 + 12r) + -4(r + -3) = 0

Reorder the terms:
-9 + 12r + -4(-3 + r) = 0
-9 + 12r + (-3 * -4 + r * -4) = 0
-9 + 12r + (12 + -4r) = 0

Reorder the terms:
-9 + 12 + 12r + -4r = 0

Combine like terms: -9 + 12 = 3
3 + 12r + -4r = 0

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

Solving
3 + 8r = 0

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + 8r = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 8r = 0 + -3
8r = 0 + -3

Combine like terms: 0 + -3 = -3
8r = -3

Divide each side by '8'.
r = -0.375

Simplifying
r = -0.375

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