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OpenStudy (anonymous):
What is the value of z in the equation z + 7.8 = 16.4? A. 24.2 B. 7.6 C. 9.6 D. 8.6
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OpenStudy (anonymous):
do opposite operation..
OpenStudy (anonymous):
\[z+7.8=16.4\]Subtract the 7.8 to the other side\[z=16.4-7.8\]Solve
OpenStudy (anonymous):
7.8-7.8=16.4-7.8
OpenStudy (anonymous):
Im sorry back
OpenStudy (anonymous):
8.6
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