2x+3y=6 and x+5y=4 by subsitution method
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Step-by-step explanation:
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Answer:
x = 18/7 and y = 2/7
Step-by-step explanation:
2x + 3y = 6 --------------(1)
x + 5y = 4 ----------------(2)
from eq. 2
x + 5y = 4
x = 4 - 5y
put x in eq. 1
2x + 3y = 6
2(4 - 5y ) + 3y = 6
8 - 10y + 3y = 6
8 -7y = 6
-7y = 6 - 8
-7y = -2
y = 2/7
put y in eq. 2
x + 5y = 4
x + 5(2/7) = 4
x + 10/7 = 4
x = 4 - 10/7
x = (28 - 10)/7
x = 18/7
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