2(x+7) + x=20
(2)(x) + (2)(7) + x=20 Distribute
2x+14 + x =20
(2x+x) + (14) =20 Combine Like Terms
3x+14=20
- 14 -14 Subtract 14 from both sides
3x = 6
3x/3 6/3 Divide Both Sides by 3
x = 2
Let me know if you still don't understand
Step-by-step explanation:
the correct answer is c
He buys three cups of hot choclate cause 1.50*3= 4.50
and he buys 5 cups of coffe cause 2.25*5=11.25
and 11.25 + 4.50=15.75
Answer:
f(x) = -5x
Step-by-step explanation:
Just add a - sign to reflect it over the x axis
Answer:
The solution to the system of equations be:

Hece, option B is correct.
Step-by-step explanation:
Given the system of equations

Multiply x − 3y = 6 by 2: 2x-6y=12

so




so the system of equations becomes

Solve 8y = -8 for y

Divide both sides by 8





subtract 6 from both sides


Divide both sides by 2


Therefore, the solution to the system of equations be:

Hence, option B is correct.