r+4r+4r-4+2(4r-4)=413

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Solution for r+4r+4r-4+2(4r-4)=413 equation:


Simplifying
r + 4r + 4r + -4 + 2(4r + -4) = 413

Reorder the terms:
r + 4r + 4r + -4 + 2(-4 + 4r) = 413
r + 4r + 4r + -4 + (-4 * 2 + 4r * 2) = 413
r + 4r + 4r + -4 + (-8 + 8r) = 413

Reorder the terms:
-4 + -8 + r + 4r + 4r + 8r = 413

Combine like terms: -4 + -8 = -12
-12 + r + 4r + 4r + 8r = 413

Combine like terms: r + 4r = 5r
-12 + 5r + 4r + 8r = 413

Combine like terms: 5r + 4r = 9r
-12 + 9r + 8r = 413

Combine like terms: 9r + 8r = 17r
-12 + 17r = 413

Solving
-12 + 17r = 413

Solving for variable 'r'.

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

Add '12' to each side of the equation.
-12 + 12 + 17r = 413 + 12

Combine like terms: -12 + 12 = 0
0 + 17r = 413 + 12
17r = 413 + 12

Combine like terms: 413 + 12 = 425
17r = 425

Divide each side by '17'.
r = 25

Simplifying
r = 25

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