4(3r-4)-20=3+5t

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Solution for 4(3r-4)-20=3+5t equation:


Simplifying
4(3r + -4) + -20 = 3 + 5t

Reorder the terms:
4(-4 + 3r) + -20 = 3 + 5t
(-4 * 4 + 3r * 4) + -20 = 3 + 5t
(-16 + 12r) + -20 = 3 + 5t

Reorder the terms:
-16 + -20 + 12r = 3 + 5t

Combine like terms: -16 + -20 = -36
-36 + 12r = 3 + 5t

Solving
-36 + 12r = 3 + 5t

Solving for variable 'r'.

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

Add '36' to each side of the equation.
-36 + 36 + 12r = 3 + 36 + 5t

Combine like terms: -36 + 36 = 0
0 + 12r = 3 + 36 + 5t
12r = 3 + 36 + 5t

Combine like terms: 3 + 36 = 39
12r = 39 + 5t

Divide each side by '12'.
r = 3.25 + 0.4166666667t

Simplifying
r = 3.25 + 0.4166666667t

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