Question

Solve for b.

d = 3a + 3b

Answer 1

d=3a+3b
d-3a=3b
(d-3a)/3=b

b=(d-3a)/3

Answer 2

Value of
`b=(d-3a)/(3)`

Explanation:

Given the expression:

d = 3a+ 3b

Subtraction property of equality states that you subtract the same number to both sides of an equation.

Subtract 3a from both sides of an equation;

`d -3a =3a + 3b -3a`

Simplify:

`d - 3a = 3b`

Division property of equality states that you divide the same number to both sides of an equation.

`(d-3a)/(3)=(3b)/(3)`

Simplify:

`(d-3a)/(3)=b`

Therefore, the value of b is in terms of d and a;
`b=(d-3a)/(3)`