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Step-by-step explanation:s

To find the value of the variable (j), we need to isolated it. we can do this by getting rid of all other numbers on that side of the equation. to do that, use the opposite function on both sides

8j + 17 = 20
the opposite function of +17 is -17, so subtract 17 from both sides to get
8j = 3
the opposite function of x8 is /8, so divide each side by 8 to get
j = 3/8