Answer:
Answer is option A which is -11
Step-by-step explanation:
Given:
y=[tex]3-\frac{x}{2}[/tex] ..........................(i)
3x + 4y = 1 ..........................(ii)
To find:
value of x = ?
Solution:
We know the value of y from the equation (i)
We can get the value of x by putting the value of y in equation (ii)
From equation (i)
y=[tex]3-\frac{1x}{2}[/tex]
Putting this value in equation (ii)
3x + 4y = 1
Putting y in here it becomes
3x + 4([tex]3-\frac{x}{2}[/tex])=1
multiplying 4 inside
3x +12 -2x=1
Subtracting 12 from both sides
3x+12-12- 2x=1-12
3x- 2x=-11
solving it gives
x=-11
