2x+y=1,3x-4y=18 find the value by substitution method
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Answer:
x=2 , y=-3
Step-by-step explanation:
2x+y=1
=x=1-y/2 ...........................(1)
put it on 3x-4y=18
=3(1-Y/2) - 4Y = 18
=3-3Y/2 = 18+4Y
=3-3Y= 36 +8Y
=-33=11Y
=Y=-3..................................(2)
PUT Y=-3 ON (1)
HENCE,
X=1-(-3)/2
=X=4/2
=X=2
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