Question

X+19=13 Find the value of x.

Answer 1

Solution 
X+19=13

1) Subtract 19 from both sides
X=13−19 

2) Simplify 13−19 to −6
X=−6 

CHECK ANSWER 

X+19=13

1) Let X=−6
−6+19=13

2 Simplify −6+19 to 13
13=13

Answer 2

To find the value of x we need to use the INVERSE OPERATION of addition which is subtraction. Then we will check our work. lets do it:- 

x + 19 = 13
x = ?
13 - 19 = x 
13 - 19 = -6
x = - 6

CHECK OUR WORK:-
 
x + 19 = 13
x = -6
-6 + 19 = 13 
We were RIGHT!!

So, x = -6

Hope I helped ya!! xD