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anonymous
 5 years ago
these are hard to put on here but what is the solution to the system of equations
{ 3xy+2z=4
<{ xy+z=10
{ 2x3y+z=4
anonymous
 5 years ago
these are hard to put on here but what is the solution to the system of equations { 3xy+2z=4 <{ xy+z=10 { 2x3y+z=4

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1matrix or sub seems to be the easiest.... sub being the eaiser

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.13xy+2z=4 xy+z=10 < z = 10x+y 2x3y+z=4 3x y +2(10x+y) = 4 3x y +20 2x+2y = 4 5x +y = 24 ; y = 5x 24  2x 3y+(10x+y) = 4 x 2y = 6  x  2(5x 24) = 6 x  10x +48 = 6 9x = 54 x = 6 ................................. y = 5x 24 y = 30 24 = 6 ................................. z = 10x+y z = 106+6 = 10 dbl check

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.13xy+2z=4 3(6) 6 +2(10) = 4 18 6 +20 = 4 24 +20 = 4 4 = 4 ...checks xy+z=10 66+10 = 10 0+10=10 10=10 .... checks 2x3y+z=4 2(6) 3(6) +10 = 4 12 18 +10 = 4 6 +10 = 4 4=4 ......checks
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