-4-3(1-7r)=-18

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Solution for -4-3(1-7r)=-18 equation: 


Simplifying
-4 + -3(1 + -7r) = -18
-4 + (1 * -3 + -7r * -3) = -18
-4 + (-3 + 21r) = -18

Combine like terms: -4 + -3 = -7
-7 + 21r = -18

Solving
-7 + 21r = -18

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 + 21r = -18 + 7

Combine like terms: -7 + 7 = 0
0 + 21r = -18 + 7
21r = -18 + 7

Combine like terms: -18 + 7 = -11
21r = -11

Divide each side by '21'.
r = -0.5238095238

Simplifying
r = -0.5238095238

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