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Anonymous
2x + 7b is an expression. Since it is not an equation it cannot be solved. Furthermore, as an expression, there is no meaninful simplification, either.
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It is: 19b+7b = 26b
It is: 7b+10 simplified
(-a-7b+5)4ab
8b
6a+7b
11a+7b-(3b-2a)
9a + 7b *remember to look and understand the letters!*
-58
6a + (7b - 4a - 8b) = (6a - 4a) + (7b - 8b) = 2a - b
It is: 7b+4b-1b = 10b when simplified
10a+7b undefined variables cannot be determined
7b + 16 = 5b + 247b - 5b = 24 - 162b = 8b = 4