Question

1) x+y=14, x - y = 8; ​

Answer 1

Ответ:

$(11; 3)$

Пошаговое объяснение:

$x+y=14 \ , \ x-y=8 \Rightarrow x+x+y-y=14+8 \Rightarrow 2x=22 \Rightarrow x=22:2=11;$

$y=14-x \Rightarrow y=14-11=3;$

$(11; 3);$

Answer 2

Ответ:

{x,y} = {11,3}

Пошаговое объяснение:

x + y = 14

x - y = 8

x = y + 8

(y +8) + y = 14

2y = 6

2y = 6

y = 3

y+8

3

x = (3)+8 = 11

Answer 3

To solve the system of equations:

1. x + y = 14
2. x - y = 8

There are multiple methods to solve this system, but I'll show you one way using the method of addition or elimination:

Step 1: Add the two equations together to eliminate the variable "y." Adding equation (1) and equation (2) gives: (x + y) + (x - y) = 14 + 8 2x = 22 Divide both sides by 2: x = 11

Step 2: Substitute the value of x back into one of the original equations to solve for y. Let's use equation (1): x + y = 14 11 + y = 14 Subtract 11 from both sides: y = 14 - 11 y = 3

So, the solution to the system of equations is x = 11 and y = 3.