3(5z-7)-2(9z-11)=4(8Z-13)-17
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Answered by
8
= 15z-21-18z+22=32z-52-17
= -3z+1=32z-69
= 1+69=32z+3z
= 70=35z
so, z= 2
= -3z+1=32z-69
= 1+69=32z+3z
= 70=35z
so, z= 2
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Answered by
5
➪ 15z - 21 - 18z + 22 = 32z - 52 - 17
➪ -3z + 1 = 32z - 69
➪ -3z - 32z = -69 - 1
➪ -35z = -70
➪ z = -70/35
➪ z = +2 Answer.
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