Question

x+y = 14 and x-y=0 find x
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Answer 1

Answer:

x=7 and y=7

Step-by-step explanation:

x+y=14 -(1)

x-y=0 -(2)

Adding eq 1 and 2

(x+y)+(x-y)=14+0

x+x+y-y=14

2x=14

x=14/2

x=7

Now, putting the value of x in eq 1

7+y=14

y=14-7

y=7

Answer 2

Heya,

Given=> x + y = 14.     equation 1

x - y = 4.       equation 2

Now, we will solve it by substitution method;

Let's take equation 1 =>

x + y = 14

x = 14 - y

Put the value of x in equation 2=>

x - y = 4

=> 14 - y - y = 4

=> 2y = 14 - 4

=> y = 10/2

=> y = 5

Now, put the value of y in equation 1 =>

x + y = 14

=> x + 5 = 14

=> x = 9

Therefore the value of x = 9 and y = 5

Hope this helps :)