Hello!
Explanation:
↓↓↓↓↓↓↓↓↓↓↓
First this problem it should be the group like terms.
Then you add similar elements.
You can also add or subtract by the numbers.
Answer⇒⇒⇒3d+9
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
x = 1
y = 1
<h3>Step-by-step explanation:</h3>Substitute into one of the equations
Rearrange variables to the left sider of the equation
Combine like terms
Divide both sides of the equation by the coefficient of variable
Determine the sign for multiplication or division
Cross out the common factor
Substitute into one of the equations
The solution of the system is
<em>I hope this helps you</em>
<em>:)</em>
