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Can someone please help? Solve the system by substitution.
4.5x2y=12.5
3.25xy=0.75
 one year ago
 one year ago
can someone show me work? Can someone please help? Solve the system by substitution. 4.5x2y=12.5 3.25xy=0.75
 one year ago
 one year ago

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ivie30Best ResponseYou've already chosen the best response.1
Multiply the second equation by 2: (3.25xy=0.75) x 2 =6.5x 2y=1.5 Now subtract this new equation from the first one to eliminate y, i.e: 4.5x2y=12.5 (6.5x 2y=1.5) =>11x+0=11 x=11/11=1 put x back into the first eqn: 4.5(1)2y=12.5 4.52y=12.5 2y=12.5+4.5 y=8.5 so, x=1, y=8.5.
 one year ago

whadduptoriBest ResponseYou've already chosen the best response.0
thank you so much!! I relly appreciate it!! (:
 one year ago

whadduptoriBest ResponseYou've already chosen the best response.0
wait when you subtract the 2 from the two wouldnt you get 4?
 one year ago

whadduptoriBest ResponseYou've already chosen the best response.0
the 2y  2y isnt that 4?
 one year ago

ivie30Best ResponseYou've already chosen the best response.1
No, it's 2y(2y)=2y+2y=0
 one year ago

whadduptoriBest ResponseYou've already chosen the best response.0
ohhhh i see what you mean! Im sorry i got confused for a second! thank you again!
 one year ago
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