84=-19+a/4 wgat is tje answer
84=-19+a/4+19+19 {add 19 to both sides65=a/44 4 {multiply by 4 to isolate the variable[260=a]
Flip the equation. \(\frac{1}{4} a\)− 19=84and add 19 to both sides\(\frac{1}{4} a\)−19+19=84+19 \(\frac{1}{4} a\)=103so than multiply by 44(\(\frac{1}{4} a\))(4)(103)Your final answer would be a=412