Question
Solve: $x+2 y+4=0 ; 3 x=-4 y-16$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

|
Variable
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
60-70
|
70-80 |
|
Frequency
|
12
|
30
|
-
|
65
|
-
|
25
|
18 |