Question

Solve for b.


1.34(b + 2) = 9.38

Answer 1

Explanation:

1.34(b + 2) = 9.38
=> (b+2) =
`(9.38)/(1.34)`
=> (b+2) =
`(9.38)/(1.34)` x
`(100)/(100)`
=> b+2 = 7
=> b = 7-2
=> b = 5

To solve the equation, we must subject b
so as 1.34 is in multiplication form with (b+2), if we take it to the other side of equals sign, it will be inverse which means it will be dividing 9.38

by multiplying 100/100 with the fraction, the decimals can be removed (100 because the dot of decimal is considered one and there are two digits after dot, so two zeroes)
then by simple division we can find 7
then as 2 is added with be if it goes to other side it will be inverted and be subtracted from 7
so we get 5