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Mathematics
Shrinkwrap
6 November, 12:58
Solve for z.
42 = - 7 (z - 3)
z = ?
+4
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Jadyn Valdez
6 November, 13:14
0
You divide by - 7 on both sides then add three to both sides and the answer is - 3
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Gauge Roy
6 November, 13:15
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To solve for z you need to get it by itself and have the other half of the equal sign simplified.
42=-7 (z-3)
42=-7z+21 (you would distribute the - 7 through the parentheses.)
21=-7z (you would then subtract 21 from both sides)
-3=z (last your would divide - 7 to both sides to get z by itself)
z=-3
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