Question

0,3b+2=-10
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Answer 1

0,3b+2=-10
0,3b=-10-2
0,3b=-12
b=-12/0,3
b=-40

Answer 2

0,3b + 2 = -10
0,3b = -10 - 2
0,3b = -12
b = -12/0,3
b = 40