Question

I need help on all of these!

Answer 1

Given:

The given equation is
`3(a+3)=15`

We need to determine the solution of the given equation.

Solution of the equation:

Step 1: To determine the value of a, first, we shall divide both sides of the equation by 3.

Thus, we get;

`(3(a+3))/(3)=(15)/(3)`

Simplifying, we get;

`a+3=5`

Thus, dividing both sides of the equation by 3, we get
`a+3=5`

Step 2: Finallly, subtracting both sides of the equation by 3, we have;

`a+3-3=5-3`

Simplifying, we get;

`a=2`

Thus, subtacting 3 from both sides of the equation, we have,
`a=2`

Hence, the solution of the equation is
`a=2`