the solution for 4x+7y=15;5x-7y=3 is?
a) x=-2, y=1
b) x=2, y=1
c) x=-2, y=-1
d) x=2 y=-1
Answers
Answered by
1
Step-by-step explanation:
option b is right
4x+7y=15. 5x-7y=3
4×2+7×1=15. 5×2-7×1=3
8+7=15. 10-7=3
B)x=2,y=1
Answered by
0
Answer:
solution for 4x+7y=15;5x-7y=3 is?
a) x=-2, y=1
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