(x+y=3
|-x + y =11
solving systems by substitution

The solution to the system of equations is (-4,7)

Explanation:

Given that the system of equations is and

Using substitution method, we shall solve the system of equations.

From the equation , let us determine the value of the y.

Thus, we have,

Now, substituting in the equation , we get,

Adding the like terms, we get,

Subtracting both sides by 3, we have,

Dividing both sides by -2, we have,

Now, substituting in the equation , we get,

Adding both sides by 4, we get,

Thus, the solution to the system of equations is (-4,7)

answer: 15

step-by-step explanation:

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .