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5 votes
What is the value of b?

​ 0.4(3b+10)=19 ​

2 Answers

2 votes

0.4(3b + 10) = 19

First: Distribute

0.4 x 3b = 1.2b

0.4 x 10 = 4

1.2b + 4 = 19

Second: Subtract 4 from both sides

+ 4 - 4 cancels out

19 - 4 = 15

1.2b = 15

Third: Divide 1.2b on both sides

1.2b/1.2 cancels out

15/1.2 = 12.5

Answer: b = 12.5

Hope this Helps!!

User Guna
by
7.9k points
1 vote

Hello!!


Isolate the variable by dividing each side by factors that don't contain the variable.


Your answer is 12.5.


Hope that you pass your test!!


User Duran
by
7.5k points

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