4r+2(1+6r)=130

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Solution for 4r+2(1+6r)=130 equation:


Simplifying
4r + 2(1 + 6r) = 130
4r + (1 * 2 + 6r * 2) = 130
4r + (2 + 12r) = 130

Reorder the terms:
2 + 4r + 12r = 130

Combine like terms: 4r + 12r = 16r
2 + 16r = 130

Solving
2 + 16r = 130

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + 16r = 130 + -2

Combine like terms: 2 + -2 = 0
0 + 16r = 130 + -2
16r = 130 + -2

Combine like terms: 130 + -2 = 128
16r = 128

Divide each side by '16'.
r = 8

Simplifying
r = 8

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