3 ( 5z - 7 ) - 2 ( 9z - 11 ) = 4 ( 8z - 13 ) - 17
Answers
Answered by
3
Answer:
z = 2
Explanation:
Given simple equation:
3(5z-7)-2(9z-11)=4(8z-13)-17
=> 15z-21-18z+22=32z-52-17
=>15z-18z-32z = -52-17+21-22
=> (15-18-32)z = -69-1
=> -35z = -70
=> z = (-70)/(-35)
=> z = 2
Therefore,
z = 2
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Answered by
1
Answer:
3 ( 5 z - 7 ) - 2 ( 9 z - 11 ) =4 ( 8 z - 13 ) - 17
(15 z - 21 ) -18 z + 22 = (32 z - 52 ) - 17
15 z - 18 z - 21 +22= 32 z - 52 - 17
- 3 z + 1 = 32 z - 6 9
69 + 1 = 32 z + 3
70 = 35 z
70 / 35 = z
2 = z
so , the answer is 2
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