18r-(8r-7)=67

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Solution for 18r-(8r-7)=67 equation:


Simplifying
18r + -1(8r + -7) = 67

Reorder the terms:
18r + -1(-7 + 8r) = 67
18r + (-7 * -1 + 8r * -1) = 67
18r + (7 + -8r) = 67

Reorder the terms:
7 + 18r + -8r = 67

Combine like terms: 18r + -8r = 10r
7 + 10r = 67

Solving
7 + 10r = 67

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 10r = 67 + -7

Combine like terms: 7 + -7 = 0
0 + 10r = 67 + -7
10r = 67 + -7

Combine like terms: 67 + -7 = 60
10r = 60

Divide each side by '10'.
r = 6

Simplifying
r = 6

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