1.3(8-b)+3.7b=5.2 Please show steps by steps

Goal isolate variable

1 distribute

2 combine like terms

(Left / right )

3 add or subtract

4 multiply or divide

5 reduce/simplify

b = -5.2/2.4

Step-by-step explanation:

1.3(8-b)+3.7b=5.2

10.4 - 1.3b + 3.7b = 5.2

10.4 + 2.4b = 5.2

2.4b = 5.2 - 10.4

2.4b = -5.2

b = -5.2/2.4

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.