Question

3 (5z - 7) +2 (92 - 11) = 4 (82 - 7)-111​

Answer 1

Answer:

3 (5z - 7) + 2(92-11) = 4 ( 82- 7) - 111

15z - 21 + 184 - 22 = 328 - 28 - 111

15z + 41 = 189

15z = 189 - 41

15z = 148

z = 148/15

z = 9.866 Ans

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Answer 2

Explanation:

3(5z-7) +2(92-11)= 4(82-7)-111

=> 15z -21 +2×81= 4×75-111

=> 15z - 21 +162= 300-111

=> 15z+141 = 300-111

=> 15z = 300-111-141

=> 15z = 48

=> z= 48/15