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Mathematics 11 Online
OpenStudy (nickymail48):

5x+4y=38 x=5y-4

OpenStudy (godlovesme):

what are you supposed to do? solve the system of equation? @nickymail48

OpenStudy (nickymail48):

yah by substitue method

OpenStudy (godlovesme):

okay so we already know that x=5y-4 so we can substitute '5y-4' in the equation 5x+4y=38 for x..make sense?

OpenStudy (godlovesme):

@nickymail48

OpenStudy (nickymail48):

i still dont know how write it out

OpenStudy (godlovesme):

hmm okay it will be like x= 5y-4 5x+4y=38 5(5y-4)+4y=38 25y-20+4y=38 29y=58 y=2 x=5y-4 x=5(2)-4 x=10-4 x=6 so the solution is (6,2) :D got it? @nickymail48

OpenStudy (nickymail48):

thanks!

OpenStudy (godlovesme):

welcome :D

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