nicholecobb
nicholecobb
24-02-2017
Mathematics
contestada
21 is greater than or equal to 3(a-7) +9
Respuesta :
RachelRD
RachelRD
24-02-2017
21≥
3(a-7) +9
first, just solve it like a normal equation
Distribute
21
≥3a-21+9
Combine numbers
21
≥3a-12
Solve like equation
33
≥3a
11≥a
"a" has to be less than or equal to 11 for the inequality to be true
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