For this all you need is to balance the equation out with the variables (a) on one side and the number on the other. Also remember that what you do to one side you do to another. So here we have 4=3a-14. You should add the 14 to both sides, on one side to cancel out the 14 and add the 14 on the other side to balance it out. Now you have 18=3a. Divide by 3 on both sides to isolate the variable a and you have your answer. A=6
Hello there!
The question asks us to solve using the substitution method. The equations given are:


We are given a value for y, which is x-8. Substituting
into the first equation of the system of equation gives us:


Use the distributive property to help simplify and solve for x

Combine like terms

Add 24 to both sides


Finally, divide both sides by 5

Now, let's use
in the equation
to find the value of y



Now, we have the values x=5 and y=-3. Putting these values into an ordered pair gives us the answer (5,-3), which is the last answer choice.
Let me know if you need any clarifications, thanks!
~ Padoru
21 / 16
= 21 ÷ 16
= 1 5/16
.......
I see nothing to explain here :/
Answer: D
Each time a new row and a new column is added. The last pattern had 3 rows and 4 columns, so the next pattern will have 4 rows and 5 column.
:)