2(6r-1)+3(r+2)=79

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Solution for 2(6r-1)+3(r+2)=79 equation:


Simplifying
2(6r + -1) + 3(r + 2) = 79

Reorder the terms:
2(-1 + 6r) + 3(r + 2) = 79
(-1 * 2 + 6r * 2) + 3(r + 2) = 79
(-2 + 12r) + 3(r + 2) = 79

Reorder the terms:
-2 + 12r + 3(2 + r) = 79
-2 + 12r + (2 * 3 + r * 3) = 79
-2 + 12r + (6 + 3r) = 79

Reorder the terms:
-2 + 6 + 12r + 3r = 79

Combine like terms: -2 + 6 = 4
4 + 12r + 3r = 79

Combine like terms: 12r + 3r = 15r
4 + 15r = 79

Solving
4 + 15r = 79

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 + 15r = 79 + -4

Combine like terms: 4 + -4 = 0
0 + 15r = 79 + -4
15r = 79 + -4

Combine like terms: 79 + -4 = 75
15r = 75

Divide each side by '15'.
r = 5

Simplifying
r = 5

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