3) Solve by Substitution Method
5x + 3y = 6
2X - 3y = 15
A) 3,3
B) 4,5
C) 3-2
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Answer:
5x+3y=6
3y=6-5x
y=6-5x/3. 3)eq
putting the value of y in second equation
2x-3(6-5x/3)=15
2x-6+5x=15
7x=15+6
X=21/7
X=3
putting the value of X in third equations
y=6-5(3)/3
y=6-15/3
y=18-15/3
y=3/3
y=1
(3,1)
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