the solution of the set of equations 3x +4y=7,4x-y=3 is
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Here 3x+4y=7.........(1)
4x-y=3........(2)
eq(1) * 1 --- 3x +4y =7
.
eq(2) * 4--- 16x -4y =12
adding eq(1) with eq(2)
................................................................
19x=19
=>x=19/19=1 ........
from eq(1) 3x + 4y=7
=>3*1 + 4y=7
=>4y = 7-3=4
=> y= 4/4=1 ..........
4x-y=3........(2)
eq(1) * 1 --- 3x +4y =7
.
eq(2) * 4--- 16x -4y =12
adding eq(1) with eq(2)
................................................................
19x=19
=>x=19/19=1 ........
from eq(1) 3x + 4y=7
=>3*1 + 4y=7
=>4y = 7-3=4
=> y= 4/4=1 ..........
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