18(r-2)=4(r-9)

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Solution for 18(r-2)=4(r-9) equation:


Simplifying
18(r + -2) = 4(r + -9)

Reorder the terms:
18(-2 + r) = 4(r + -9)
(-2 * 18 + r * 18) = 4(r + -9)
(-36 + 18r) = 4(r + -9)

Reorder the terms:
-36 + 18r = 4(-9 + r)
-36 + 18r = (-9 * 4 + r * 4)
-36 + 18r = (-36 + 4r)

Add '36' to each side of the equation.
-36 + 36 + 18r = -36 + 36 + 4r

Combine like terms: -36 + 36 = 0
0 + 18r = -36 + 36 + 4r
18r = -36 + 36 + 4r

Combine like terms: -36 + 36 = 0
18r = 0 + 4r
18r = 4r

Solving
18r = 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
18r + -4r = 4r + -4r

Combine like terms: 18r + -4r = 14r
14r = 4r + -4r

Combine like terms: 4r + -4r = 0
14r = 0

Divide each side by '14'.
r = 0

Simplifying
r = 0

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