Answer:
The answer is A.
Step-by-step explanation:
You have to add up both polynomials together :
A = 7x² + 3xy
B = -3xy
A + B = 7x² + 3xy + (-3xy)
= 7x² + 3xy - 3xy
= 7x²
Hope this helps. Solution is attached on the image above.
<h3>Hey there </h3><h3>Improper Fraction:

</h3><h3>Mixed number/ Fraction :

</h3><h3>Check to see if it gives your decimal </h3><h3>

</h3><h3>

→

</h3><h3>

→

</h3><h3>We now have:

</h3><h3>Therefore, your result (

) is:

</h3><h3>Good luck on your assignment and enjoy your day!</h3><h3>~

</h3>
Answer:
x = -2
Step-by-step explanation:
-9x + 1 = -x + 17
To solve this equation
Note if there is more than one variable like x, y, or z
Also note the power of the variables, for example, x^2 or y^3
In this equation, there is only one variable which is x and it's also in the power of 1 ie x
Step 1 : rearrange according to like terms
-9x + x = 17 - 1
( don't forget that the sign always change on crossing an equals to, either + to - or - to +
-9x + x (also means 9 - 1 but only carries a negative sign)
= - 8x = 16
Dividing both sides by -8 to get the value of x
-8x / 8 = 16 /- 8
x = 16/ -8
x = -2