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Alex777 [14]
2 years ago
6

3(b + 5) = 4(2b - 5)

Mathematics
2 answers:
hichkok12 [17]2 years ago
8 0

Answer:

b= 7

Step-by-step explanation:

3b +15 = 8b -20

-8b

-5b = -35

/-5

b= 7

nikklg [1K]2 years ago
6 0

Answer:

b = 7

Step-by-step explanation:

3 ( b + 5 ) = 4 ( 2b - 5 )

The first thing to do is to distribute, using the distributive property.

3 ( b + 5 ) = 4 ( 2b - 5 )

3b + 15 = 8b - 20

whichever side has the highest x value subtract or add the common numeral from.

3b + 15 = 8b - 20

+ 20 + 20

3b + 35 = 8b

then subtract or add the smaller value of x.

3b + 35 = 8b

- 3b - 3b

35 = 5b

Then we divide both sides by the number next to the variable

5b / 5

35 / 5

Now you have the final solution using those numbers

b = 7

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