Question

What is the value of b?

​ 0.4(3b+10)=19 ​

Answer 1

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!!

Answer 2

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!!