j*k+8=21

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Solution for j*k+8=21 equation: 


Simplifying
j * k + 8 = 21

Multiply j * k
jk + 8 = 21

Reorder the terms:
8 + jk = 21

Solving
8 + jk = 21

Solving for variable 'j'.

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

Add '-8' to each side of the equation.
8 + -8 + jk = 21 + -8

Combine like terms: 8 + -8 = 0
0 + jk = 21 + -8
jk = 21 + -8

Combine like terms: 21 + -8 = 13
jk = 13

Divide each side by 'k'.
j = 13k-1

Simplifying
j = 13k-1

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