3r+2(15r-23)=20

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Solution for 3r+2(15r-23)=20 equation:


Simplifying
3r + 2(15r + -23) = 20

Reorder the terms:
3r + 2(-23 + 15r) = 20
3r + (-23 * 2 + 15r * 2) = 20
3r + (-46 + 30r) = 20

Reorder the terms:
-46 + 3r + 30r = 20

Combine like terms: 3r + 30r = 33r
-46 + 33r = 20

Solving
-46 + 33r = 20

Solving for variable 'r'.

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

Add '46' to each side of the equation.
-46 + 46 + 33r = 20 + 46

Combine like terms: -46 + 46 = 0
0 + 33r = 20 + 46
33r = 20 + 46

Combine like terms: 20 + 46 = 66
33r = 66

Divide each side by '33'.
r = 2

Simplifying
r = 2

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