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Mathematics
Siena
8 December, 04:49
Solve the inequality 21 - z < 19
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Tatiana Carter
8 December, 06:26
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You need to isolate z, so first subtract 21 from both sides so you have:
-z<-2
Multiply both sides by - 1 so z is positive (when a negative number is multiplied or divided in an inequality, the sign flips):
z>2
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