2b -5 = -3
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The expression 2b - 5 represents a mathematical operation where you subtract 5 from twice the value of b. To simplify, you would distribute the 2 to the b term, resulting in 2b - 5. This expression cannot be further simplified without knowing the specific value of b.
-8
-2b + 7 -3b = 2 -2b +7 -3b +2b = 2 + 2b 7 -3b + 3b = 2 + 2b +3b 7-2 = 2-2 + 2b + 3b 5 = 5b 1 = b
If b = 5 then 15-10 = 5
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
5