Determine by substitution, if :
b) 4 is a root of 2x - 3 = 5
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and I have also put another question on the app this is part b and part a 8s also there please answer both
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Substitute x = 4,. 2x - 3 = 5. 2(4) - 3 = 5. 8 - 3 - 5 = 0. 5-5 = 0. Since it gives the value 0 , 4 is a root of the equation
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