393=7(7-6k)+8

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Solution for 393=7(7-6k)+8 equation:


Simplifying
393 = 7(7 + -6k) + 8
393 = (7 * 7 + -6k * 7) + 8
393 = (49 + -42k) + 8

Reorder the terms:
393 = 49 + 8 + -42k

Combine like terms: 49 + 8 = 57
393 = 57 + -42k

Solving
393 = 57 + -42k

Solving for variable 'k'.

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

Add '42k' to each side of the equation.
393 + 42k = 57 + -42k + 42k

Combine like terms: -42k + 42k = 0
393 + 42k = 57 + 0
393 + 42k = 57

Add '-393' to each side of the equation.
393 + -393 + 42k = 57 + -393

Combine like terms: 393 + -393 = 0
0 + 42k = 57 + -393
42k = 57 + -393

Combine like terms: 57 + -393 = -336
42k = -336

Divide each side by '42'.
k = -8

Simplifying
k = -8

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