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Nataliya [291]
3 years ago
10

I need help on solving number 6

Mathematics
2 answers:
musickatia [10]3 years ago
4 0
Z= -16
first you have to subtract 7 from both sides by using inverse operation
-7 =-9
+7 =-9
the 7's cancel out and your left with (z= -9)
                                                               -7
                                                             ___
                                                          z=-16
Irina-Kira [14]3 years ago
4 0
Z + 7 = -9

Subtract 7 from both sides.

z+7−7=−9−7

z=−16

Answer:

z = −16

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