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3x + y=11 -2x + y=1 Solve using substitution method
Question
3x + y=11
-2x + y=1
Solve using substitution method
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Mathematics
3 years
2021-08-10T15:31:25+00:00
2021-08-10T15:31:25+00:00 2 Answers
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Answers ( )
Step-by-step explanation:
here’s the solution : –
=》3x + y = 11
=》y = 11 – 3x
now, plugging the value of y in equation 2
=》-2x + y = 1
=》-2x + 11 – 3x = 1
=》-5x = -10
=》x = 2
now, plugging the value of x as 2 in equation 1
=》3x + y = 11
=》6 + y = 11
=》y = 11 – 6
=》y = 5
Answer:
3x+yl=11
-2x+y=11
y=11-3x
-2x+11-3x=11
-5x=11-11
so x=0
y=11-0
y=11