18-7r=5(4r-2)

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Solution for 18-7r=5(4r-2) equation:


Simplifying
18 + -7r = 5(4r + -2)

Reorder the terms:
18 + -7r = 5(-2 + 4r)
18 + -7r = (-2 * 5 + 4r * 5)
18 + -7r = (-10 + 20r)

Solving
18 + -7r = -10 + 20r

Solving for variable 'r'.

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

Add '-20r' to each side of the equation.
18 + -7r + -20r = -10 + 20r + -20r

Combine like terms: -7r + -20r = -27r
18 + -27r = -10 + 20r + -20r

Combine like terms: 20r + -20r = 0
18 + -27r = -10 + 0
18 + -27r = -10

Add '-18' to each side of the equation.
18 + -18 + -27r = -10 + -18

Combine like terms: 18 + -18 = 0
0 + -27r = -10 + -18
-27r = -10 + -18

Combine like terms: -10 + -18 = -28
-27r = -28

Divide each side by '-27'.
r = 1.037037037

Simplifying
r = 1.037037037

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