Solve the following simultaneous equations by elimination method. 5x-6x+30=0;5x+4y-20=0
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Answer:
(1)-31 (2)- 1
Step-by-step explanation:
=>-1x=30
=>x=30+1
=>x =31
(2)=> 5x+4y=20
=> 5x = 20÷4y
=> 5x= 5y
=> xy=1
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