4x+5y=3,12x+25y=11 by elimination method plz give real answers
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Answered by
11
Answer:3(4x)+25y=11
3(3-5y)+25y=11
9-15y+25y=11
10y=2
y=1/5
Substitute in 1
4x+5y=3
4x+1=3
4x=2
X=1/2
Step-by-step explanation:
Hope u can understand it....
Answered by
5
Answer:
x=1/2,y=1/5
Step-by-step explanation:4x+5y=3......eq (1)
12x+25y=11........eq (2)
equating with x-coefficient then we get
12×eq (1)》12 (4x+5y=3)=48x+60y=36...... eq (3)
4×eq(2)》4 (12x+25y=11)=48x+100y=44....eq (4)
Dividing eq (3)&(4)
48x+60y=36
48x+100y=44
(-) (-) (-)
----------------------
-40y=-8
40y=8
y=8/40=1/5
Substitute y=1/5 in eq (1),
4x+5(1/5)=3
4x+(5/5)=3
4x+1=3
4x=3-1
4x=2
x=2/4=1/2
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