Question

63=7(5+7b) equals what

Answer 1

Answer:

$b = 0.57$

Step-by-step explanation:

$63 = 7(5 + 7b) \\ 63 = 35 + 49b \\ 63 - 35 = 49b \\ 28 = 49b \\ \frac{28}{49} = \frac{49b}{49} \\ b = 0.57$

Answer 2

To solve this question, we can do it both ways. we can get rid of the 7 by dividing it, or we can distribute it to the parenthesis. let's do this the distribution way.

63=7(5+7b)

When distributing, the number behind (7) goes to both and all terms in the parenthesis.

63=7(5)+7(7b)

Multiply.

63=35+49b

Subtract 35.

28=47b

Divide by 49.

0.57=b