Answer:
12
Step-by-step explanation:
2x - 7 =5 +x
2x - x =5 +7
x =12 (one solution)
The first step for solving this expression is to distribute

through the first set of parenthesis.

× (x - 9)
Now use the FOIL method to multiply each term in the first parenthesis by each term in the second parenthesis. This will look like the following:

x × x -

x × 9 -

x -

× (-9)
Remember that multiplying two negatives together equals a positive,, so the expression changes to:

x × x -

x × 9 -

x +

× 9
Calculate the product of all of the sets of multiplication to make the expression become:

x² -

x -

x +

Lastly,, calculate the difference of -

x -

x to find your final answer.

x² -

x +

Let me know if you have any further questions.
:)
Answer:
The first answer is correct.
Step-by-step explanation:
Line 5 says that the reason is due to substitution
Line 3 says m∠ SQT equals 180°
If we substitute 180° into the spot for m∠ SQT in line 4, we get solution option 1
Answer:
Division Expression - 7 ÷ 3
Unit Form - 21 thirds ÷ 3 = 7
Improper Fraction 7/3
Step-by-step explanation:
Hope this helps!! <3