if 7x‐y=49 and 7x+y=343. then find the value of 6x+2y.
Answers
Answered by
1
Answer:
7x‐y=49 and 7x+y=343 hope it helps agar nahi to kya
Answered by
6
Answer:
462
Step-by-step explanation:
7x-y=49 .....eq.1
7x+y=343 .....eq2
by adding both equation we get
14x=392
x=28
putting the value of x in eq.1
7×28-y=49
196-49=y
y=147
6x+2y=6×28+2×147
=168+294
=462
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