solve the simultaneous sums 5x + 7 y = 17 , 3x - 2y = 4
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Answer:
5x+7y = 17 )3
3x-2y = 4 )5
15x+21y = 51
15x-10y = 20
31y = 31
y = 1
5x+7(1)= 17
5x = 10
x = 2
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