Subtract 2nd expression from 1st expression 6x - 7z , 3x +9z
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Subtract 2nd expression from 1st expression 6x - 7z , 3x +9z
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Answer:
(3x+9z)-(6x-7z)
Step-by-step explanation:
when we open the brackets the expression is as follows
3x+9z-6x+7z
3x-6x+9z+7z
-3x+16z