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Mathematics 21 Online
OpenStudy (anonymous):

Solve the system by substituion: -4.5x-2y=-12.5 3.25x-y=-0.75 math wizards please helppppp this girl(:

OpenStudy (anonymous):

-4.5x-2y=-12.5 EQ 1) 3.25x-y=-0.75 EQ 2) rearrange EQ2) 3.25x=-0.75+y 3.25x+0.75=y EQ! 2a) sub this to EQ 1) -4.5x-2( 3.25x+0.75)=-12.5 work this out lets see what you get for your x

OpenStudy (anonymous):

@mark_o. I got x=1

OpenStudy (anonymous):

correct now sub x=1 to EQ 2) or EQ 1)

OpenStudy (anonymous):

thats to find y

OpenStudy (anonymous):

Give me a minute(:

OpenStudy (anonymous):

ok take you time..lol :D

OpenStudy (anonymous):

When I plugged it into the first equation I got y=4

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