15. (2z-7) – 3(3z + 8) = 4z – 9
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Refer to the attachment frnd..
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First we will solve the bracket for the second term i.e
2z - 7 - 9z - 24 = 4z - 9
Now gather z terms on one side and numbers on another
2z - 9z - 4z = -9 + 7 + 24
-11z = 22
By dividing
Z = -22/11
Thus z = -2
2z - 7 - 9z - 24 = 4z - 9
Now gather z terms on one side and numbers on another
2z - 9z - 4z = -9 + 7 + 24
-11z = 22
By dividing
Z = -22/11
Thus z = -2
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