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OpenStudy (anonymous):
how do solve this -----> -(5z+12)=18 ?
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OpenStudy (across):
What have you tried so far?
OpenStudy (anonymous):
-(5z+12)=18 -5z-12=18 -5z=30 z=30/-5 z=-2
OpenStudy (anonymous):
thanks guys !!
OpenStudy (anonymous):
@gtvpa You are wrong because you have to distribute the negative sign in front of the parentheses first. (It's the same as having -1(5z+12))
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