Answer:
x=9
Step-by-step explanation:
2x+10=28
2x=18
x=9
Answer:
- b = 2
- x = 4
- c = 4
- k =7
- I'm sorry, I think you have accidentally left out the variable in the question. I can't solve it because there's no variable to solve.
- v = 1
There is no specific instruction in your question. I try to answer it based on what I understand from the equations. Hope this helps!
Step-by-step explanation:
Just rearrange the equation to solve the variable.
Answer:
x=−3 and y=7
Step-by-step explanation Solve: 7x+2y=−7for x:
7x+2y=−7
7x+2y+−2y=−7+−2y(Add -2y to both sides)
7x=−2y−7
7x
7
=
−2y−7
7
(Divide both sides by 7)
x=
−2
7
y−1
------------
−2
7
y−1forxin11x+5y=2:
11x+5y=2
11(
−2
7
y−1)+5y=2
13
7
y−11=2(Simplify both sides of the equation)
13
7
y−11+11=2+11(Add 11 to both sides)
13
7
y=13
13
7
y
13
7
=
13
13
7
(Divide both sides by 13/7)
y=7
------------------------
Substitute7foryinx=
−2
7
y−1:
x=
−2
7
y−1
x=
−2
7
(7)−1
x=−3(Simplify both sides of the equation)
Answer:
3.78 because u subtract 17.22 from 21
Answer: A
Explanation: the two number problems do not equal the same thing until one of the number problems gets subtracted by a certain amount or adds a certain amount.
