Solve the equation y=2x - 4 and 3x+y=11
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Answered by
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Answer:
y=2x - 4
3x+y=11
3x+(2x-4)=11. (equation 1)
3x+2x-4=11
6x=7
x=7/6
y=2×7/6-4
=7/3-4
=7-12/3
=-5/3
x=7/6 and y= -5/3
Answered by
0
Answer:
y = 2x-4 and 3x+y = 11
-2x+y = -4 ---------(1)
3x+y = 11 --------(2)
subtract (1) & (2)
-2x+y = -4
3x+y = 11
-. -. -
_______
x = -15
put x = -15 in (2)
3(-15)+y = 11
-45+y = 11
y = 11+45
y = 56
(x,y) = (-15,56)
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