18+7r=6r+8(r-4)

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Solution for 18+7r=6r+8(r-4) equation:


Simplifying
18 + 7r = 6r + 8(r + -4)

Reorder the terms:
18 + 7r = 6r + 8(-4 + r)
18 + 7r = 6r + (-4 * 8 + r * 8)
18 + 7r = 6r + (-32 + 8r)

Reorder the terms:
18 + 7r = -32 + 6r + 8r

Combine like terms: 6r + 8r = 14r
18 + 7r = -32 + 14r

Solving
18 + 7r = -32 + 14r

Solving for variable 'r'.

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

Add '-14r' to each side of the equation.
18 + 7r + -14r = -32 + 14r + -14r

Combine like terms: 7r + -14r = -7r
18 + -7r = -32 + 14r + -14r

Combine like terms: 14r + -14r = 0
18 + -7r = -32 + 0
18 + -7r = -32

Add '-18' to each side of the equation.
18 + -18 + -7r = -32 + -18

Combine like terms: 18 + -18 = 0
0 + -7r = -32 + -18
-7r = -32 + -18

Combine like terms: -32 + -18 = -50
-7r = -50

Divide each side by '-7'.
r = 7.142857143

Simplifying
r = 7.142857143

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