8j + 3-j=17
solve for J

First you have to combine like terms which you would combine 8j and j which would be 7j+3=17 then subtract 3 from 17 giving you 14. And after that your left with 7j=14 then divide 7 on both sides giving you 2 as your answer.

it’s 2

A= r2 × 3.14 7x7 ↓ ↓ 49 × 3.14 = 153.86 → 153.9