6-9(1-7n)=-21

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Solution for 6-9(1-7n)=-21 equation:


Simplifying
6 + -9(1 + -7n) = -21
6 + (1 * -9 + -7n * -9) = -21
6 + (-9 + 63n) = -21

Combine like terms: 6 + -9 = -3
-3 + 63n = -21

Solving
-3 + 63n = -21

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 63n = -21 + 3

Combine like terms: -3 + 3 = 0
0 + 63n = -21 + 3
63n = -21 + 3

Combine like terms: -21 + 3 = -18
63n = -18

Divide each side by '63'.
n = -0.2857142857

Simplifying
n = -0.2857142857

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