Answer:
x = 1 y = 2
Step-by-step explanation:
x + 3y = 7
- Subtract x from both sides.
3y = -x + 7
- Divide both sides by 3 to isolate the variable.
y = -1/3x + 7/3
- Plug the value of y into the other equation.
3x + 4(-1/3x + 7/3) = 11
3x - 4/3x + 28/3 = 11
- Add like terms.
5/3x + 28/3 = 11
5/3x = 5/3
x = 1
- Plug the value of x into the equation.
x + 3y = 7
(1) + 3y = 7
3y = 6
y = 2
the answer is simple and easy. why do you ask such question.
anyway answer is D i.e. 6l²(6*7*7)
Answer:
7.8/10
Step-by-step explanation:
4/10+38/100=7.8/10
Answer:
120 km
Step-by-step explanation:
60km+60km=120
