-7r-4(9-2r)=

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Solution for -7r-4(9-2r)= equation:


Simplifying
-7r + -4(9 + -2r) = 0
-7r + (9 * -4 + -2r * -4) = 0
-7r + (-36 + 8r) = 0

Reorder the terms:
-36 + -7r + 8r = 0

Combine like terms: -7r + 8r = 1r
-36 + 1r = 0

Solving
-36 + 1r = 0

Solving for variable 'r'.

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

Add '36' to each side of the equation.
-36 + 36 + 1r = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 1r = 0 + 36
1r = 0 + 36

Combine like terms: 0 + 36 = 36
1r = 36

Divide each side by '1'.
r = 36

Simplifying
r = 36

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