18-8r=2(1+4r)

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Solution for 18-8r=2(1+4r) equation:


Simplifying
18 + -8r = 2(1 + 4r)
18 + -8r = (1 * 2 + 4r * 2)
18 + -8r = (2 + 8r)

Solving
18 + -8r = 2 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
18 + -8r + -8r = 2 + 8r + -8r

Combine like terms: -8r + -8r = -16r
18 + -16r = 2 + 8r + -8r

Combine like terms: 8r + -8r = 0
18 + -16r = 2 + 0
18 + -16r = 2

Add '-18' to each side of the equation.
18 + -18 + -16r = 2 + -18

Combine like terms: 18 + -18 = 0
0 + -16r = 2 + -18
-16r = 2 + -18

Combine like terms: 2 + -18 = -16
-16r = -16

Divide each side by '-16'.
r = 1

Simplifying
r = 1

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