Question

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

Answer 1

Answer:

a =15

Step-by-step explanation:

5a - 10 b = 45

5a - 10 x 3 = 45

5a - 30 = 45

5a = 45 + 30

a = 75/5

a = 15

Answer 2

Answer:

The value of a is 15.

Step-by-step explanation:

Given : Equation $5a-10b=45$, when b=3.

To find : What is the value of a ?

Solution :

Equation, $5a-10b=45$

Substitute the value of b=3,

$5a-10(3)=45$

$5a-30=45$

$5a=45+30$

$5a=75$

$a=\frac{75}{5}$

$a=15$

Therefore, The value of a is 15.