Step-by-step explanation:
given

as equation 1, and

as equation 2.
Now, multiply equation 2 by 2.

now let's this equation be equation 3.
We now use equation 1 + equation 3 to eliminate y and find x.

Now substitute x = 7 into equation 2.

You can do this: since 1/4 is .25 then just multiply 8 x .25
Answer:
Graph A is the answer
Step-by-step explanation:
Detailed Answer:
An algebraic equation can be defined as a mathematical statement in which two expressions are set equal to each other.
Example of Algebraic Equations:
Eg. 1) x + 10 = 20
Eg. 2) 5x + 10 = 20
Eg. 3) 2x + 2 = 4