Hi!
First make the denominators the same.

Add the numerators

Simplify to get your answer
The answer is

Hope this helps! :)
Answer:
idk how to do that try to slove it
but I didn't get right answer
The value of x is
-4x + 8 = 42
-4x = 42 -8
-4x = 34
x = -8,5
6(2)+3y=15
12+3y=15
-12 -12
3y=3
3y/3 3/3
y=1
6(5)+3y=15
30+3y=15
-30 -30
3y=-15
3y/3 -15/3
y= -5