25. (REI.5) What is the value of y in the following system of equations?
3y = 2x-6
x + y = 8
A. 2
B. 6
C. -2
D. -6

6

Step-by-step explanation:

x +y = 8

-x. -x

y = 8 - ×

substitute into the 1st equation

3(8 - x) = 2x - 6

24 - 3x = 2x - 6

+6. +6

30 - 3x = 2x

+3x. +3x

30 = 5x

÷ by 5

x = 6

The x-coordinate of the solution to this system of equations is 1.

Step-by-step explanation:

Given,

We have to find out the x-coordinate of the equation.

Solution,

Let

Again let

Now using elimination method we will solve the equations.

For this we will add equation 1 and equation 2 and get;

Now on dividing both side by '9' we get;

Hence The x-coordinate of the solution to this system of equations is 1.