Answer:
Steve
Step-by-step explanation:
Because it means greater than or equal to
-30 represents 30 meters below zero.
Zero represents sea level in this situation.
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6x +30 -3x +6 =12x +18
3x +36 =12x +18
3x-12x = 18 -36
-9x = -18 | -1
9x =18
x= 18/9
x=2
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