Question

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Question 2

3 pts

Select the three equations that are also equivalent to 0.5 +10b+4= 19.5

A. 106 +4= 19.5

B. 10b +4=19

C. 2(0.5 +10b+ 4) = 39

D. 10b= 19.5

E. 10b= 15

Answer 1

Equation (B) and (C) are equal to 0.5+10b+4=19.5

As in equation (B) when we take the 0.5 on the other side, the sign will change.Then the equation will be 10b+4=19.5-0.5

Which equals : 10b+4=19

In equation (C) 2(0.5+10b+4)=39

The 2 which is being multiplied to the bracket equation will be canceled out when we divide it , and will be divided on the other side as well so 39÷2=19.5

So the equation will become 0.5+10b+4=19.5