if x=7 and y=5 is the solution of 3x+at=31 the value of a is ______.
A) 21
B) 21
C) 57
D) 52
Answers
Answered by
1
Answer:
ans:-a)21 this is the right answer
Answered by
0
Answer:
Is there at or ay??
if ay then—
3×7+a×5=31
21+5a=31
5a=31-21
a=10/5
a=2
Similar questions