What is the solution to this system of linear equations?
x + y = 4
x - y = 6

x = 5 , y = -1

Step-by-step explanation:

Given:

x + y = 4 equation 1

x - y = 6 equation 2

Solving the simultaneous equation by elimination method;

From equation 1 make x the subject of the formula , that is

x = 4 -y equation 3

substitute equation 3 into equation 2 , we have

4 - y - y = 6

4 - 2y = 6

Add 2y to both sides , we have

4 = 6 + 2y

subtract 6 from both sides , we have

4 - 6 = 2y

- 2 = 2y

divide both sides by 2

-2/2 = y

Therefore : y = -1

Substitute y = -1 into equation 3 , we have

x = 4 - (-1)

x = 4 + 1

x = 5

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )