Question

helpp needed screenshot attached

Answer 1

Wait where's the screenshot

Answer 2

5x+2y=21 ...(1)
-2x+6y=-34 ...(2)
multiply (1) by 3
15x+6y=63 ...(3)
(3)-(2) gives
17x=97
\[x=\frac{ 97 }{ 17 }\]
from (1)
\[5\left( \frac{ 97 }{ 17 } \right)+2y=21\]
\[\frac{ 485 }{17 }+2y=21\]
\[2y=21-\frac{ 485 }{17 }=\frac{ 357-485 }{ 17 }=-\frac{ 128 }{ 17 }\]
\[y=-\frac{ 64 }{ 17 }\]
\[x \approx 5.705...\approx 5.7\]
\[y \approx -3.764 \approx -3.8\]

Answer 3

hi

Answer 4

@ava21