2*(2/3z+1)+3 1/3=4-1/2*(4/5z-1)

Question

2*(2/3z+1)+3 1/3=4-1/2*(4/5z-1)

Answer 1

2 * (2/3z + 1) + 3 1/3 = 4 - 1/2 * ( 4/5 z - 1)

4/3z + 2 + 3 1/3 = 4 - 4/10z + 1/2

4/3z + 2/5z = 4 + 1/2 - 2 - 3 1/3

20/15z + 6/15z = 4 1/2 - 5 1/3

26/15z = 9/2 - 16/3 = 27/6 - 32/6 = - 5/6

z = - 5/6 : 26/15 = - 5/6 * 15/26 = - 75/156 = - 25/52

z = - 25/52

Answer 2

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